Thomas Stewart Udall ( ; born May 18, 1948) is an American diplomat, attorney, and politician who had served as the
United States Ambassador to New Zealand and Samoa. A member of the
Democratic Party, he served as a
United States senator
The United States Senate consists of 100 members, two from each of the 50 U.S. state, states. This list includes all senators serving in the 119th United States Congress.
Party affiliation
Independent Senators Angus King of Maine and Berni ...
for
New Mexico
New Mexico is a state in the Southwestern United States, Southwestern region of the United States. It is one of the Mountain States of the southern Rocky Mountains, sharing the Four Corners region with Utah, Colorado, and Arizona. It also ...
from 2009 to 2021. Udall also served as the
U.S. representative
The United States House of Representatives is a chamber of the bicameral United States Congress; it is the lower house, with the U.S. Senate being the upper house. Together, the House and Senate have the authority under Article One of th ...
for from 1999 to 2009 and
New Mexico attorney general from 1991 to 1999. Born in
Tucson, Arizona
Tucson (; ; ) is a city in Pima County, Arizona, United States, and its county seat. It is the second-most populous city in Arizona, behind Phoenix, Arizona, Phoenix, with a population of 542,630 in the 2020 United States census. The Tucson ...
to the
Udall family, he is the son of former U.S. Representative and
Secretary of the Interior Stewart Udall and the nephew of former U.S. Representative
Mo Udall. His cousin is
Mark Udall, who concurrently served alongside him in the senate representing the neighboring state of
Colorado
Colorado is a U.S. state, state in the Western United States. It is one of the Mountain states, sharing the Four Corners region with Arizona, New Mexico, and Utah. It is also bordered by Wyoming to the north, Nebraska to the northeast, Kansas ...
from 2009 until 2015.
Udall was first elected in the
2008 Senate race and was re-elected in
2014
The year 2014 was marked by the surge of the Western African Ebola epidemic, West African Ebola epidemic, which began in 2013, becoming the List of Ebola outbreaks, most widespread outbreak of the Ebola, Ebola virus in human history, resul ...
, and became dean of
New Mexico's congressional delegation. He did not seek a third term in
2020
The year 2020 was heavily defined by the COVID-19 pandemic, which led to global Social impact of the COVID-19 pandemic, social and Economic impact of the COVID-19 pandemic, economic disruption, mass cancellations and postponements of even ...
, making him the only Democratic senator to retire that cycle. On July 16, 2021, President
Joe Biden
Joseph Robinette Biden Jr. (born November 20, 1942) is an American politician who was the 46th president of the United States from 2021 to 2025. A member of the Democratic Party (United States), Democratic Party, he served as the 47th vice p ...
nominated Udall to serve as
United States Ambassador to New Zealand and
Samoa
Samoa, officially the Independent State of Samoa and known until 1997 as Western Samoa, is an island country in Polynesia, part of Oceania, in the South Pacific Ocean. It consists of two main islands (Savai'i and Upolu), two smaller, inhabited ...
.
Early life, education, and law career
Udall was born in
Tucson, Arizona
Tucson (; ; ) is a city in Pima County, Arizona, United States, and its county seat. It is the second-most populous city in Arizona, behind Phoenix, Arizona, Phoenix, with a population of 542,630 in the 2020 United States census. The Tucson ...
, to Ermalee Lenora (née Webb) and
Stewart Udall, the
Secretary of the Interior from 1961 to 1969. He is of partial Swiss ancestry on his mother's side. He completed his undergraduate education at
Prescott College
Prescott College is a private college in Prescott, Arizona, United States.
History
Prescott College was founded in 1966 after a conference titled "Emergence of a Concept". Conveners Charles Parker and the Ford Foundation brought together leade ...
, before going on to receive a
Bachelor of Laws
A Bachelor of Laws (; LLB) is an undergraduate law degree offered in most common law countries as the primary law degree and serves as the first professional qualification for legal practitioners. This degree requires the study of core legal subje ...
degree from the
University of Cambridge
The University of Cambridge is a Public university, public collegiate university, collegiate research university in Cambridge, England. Founded in 1209, the University of Cambridge is the List of oldest universities in continuous operation, wo ...
and a
Juris Doctor
A Juris Doctor, Doctor of Jurisprudence, or Doctor of Law (JD) is a graduate-entry professional degree that primarily prepares individuals to practice law. In the United States and the Philippines, it is the only qualifying law degree. Other j ...
from the
University of New Mexico School of Law.
Early political career
In 1982, Udall ran for Congress in the newly created 3rd district, based in the state capital,
Santa Fe, and including most of the north of the state. He lost the Democratic primary to
Bill Richardson
William Blaine Richardson III (November 15, 1947 – September 1, 2023) was an American politician, author, and diplomat who served as the List of governors of New Mexico, 30th governor of New Mexico from 2003 to 2011. He was U.S. ambassador to ...
. In 1988, he ran for Congress again, this time in an election for the
Albuquerque
Albuquerque ( ; ), also known as ABQ, Burque, the Duke City, and in the past 'the Q', is the List of municipalities in New Mexico, most populous city in the U.S. state of New Mexico, and the county seat of Bernalillo County, New Mexico, Bernal ...
-based 1st district seat left open by retiring twenty-year incumbent
Manuel Lujan Jr., but narrowly lost to
Bernalillo County District Attorney
Steven Schiff. From 1991 to 1999 he served as
Attorney General of New Mexico.
U.S. House of Representatives
Elections
Udall ran for Congress again in 1998 in the 3rd district against incumbent
Bill Redmond, who had been elected in
a 1997 special election to replace Richardson. Redmond was a conservative Republican representing a heavily Democratic district, and Udall defeated Redmond 53% to 43%. He was reelected four more times with no substantive opposition, including an unopposed run in 2002.
Tenure
As a U.S. Representative, Udall was a member of both the
centrist
Centrism is the range of political ideologies that exist between left-wing politics and right-wing politics on the left–right political spectrum. It is associated with moderate politics, including people who strongly support moderate policie ...
New Democrat Coalition
The New Democrat Coalition is a caucus in the House of Representatives of the United States Congress made up of Democrats, primarily liberals and centrists, who take a pro-business stance and a liberal-to-moderate approach to fiscal matte ...
and the more
liberal Congressional Progressive Caucus. He was a member of the United States House
Peak oil
Peak oil is the point when global oil production reaches its maximum rate, after which it will begin to decline irreversibly. The main concern is that global transportation relies heavily on gasoline and diesel. Adoption of electric vehicles ...
Caucus, which he co-founded with Representative
Roscoe Bartlett of Maryland.
Committee assignments
Udall sat on the
United States House of Representatives Committee on Appropriations in the
Subcommittee on Interior, Environment, and Related Agencies, the
Subcommittee on Labor, Health and Human Services, Education, and Related Agencies and the
Subcommittee on Legislative Branch.
Caucuses
He was the Co-Vice Chair of the House Native American Caucus and Co-Chair of the
International Conservation Caucus.
U.S. Senate
Elections
In November 2007, Udall announced his run for the Senate seat held by retiring six-term incumbent
Republican Pete Domenici
Pietro Vichi "Pete" Domenici ( ; May 7, 1932 – September 13, 2017) was an American attorney and politician who served as a United States Senator from New Mexico from 1973 to 2009. A member of the Republican Party, he served six terms in ...
. Potential Democratic rival
Albuquerque
Albuquerque ( ; ), also known as ABQ, Burque, the Duke City, and in the past 'the Q', is the List of municipalities in New Mexico, most populous city in the U.S. state of New Mexico, and the county seat of Bernalillo County, New Mexico, Bernal ...
Mayor
Martin Chavez dropped out, handing Udall the nomination. New Mexico's other two members of the House, 1st and 2nd district's
Heather Wilson and
Steve Pearce, ran in the Republican primary. Pearce won the Republican nomination, and lost to Udall, by 186,606 votes.
While Udall ran for Senate in New Mexico, his younger first cousin, Congressman
Mark Udall, ran for the Senate in
Colorado
Colorado is a U.S. state, state in the Western United States. It is one of the Mountain states, sharing the Four Corners region with Arizona, New Mexico, and Utah. It is also bordered by Wyoming to the north, Nebraska to the northeast, Kansas ...
. Their
double second cousin, incumbent
Gordon Smith of
Oregon
Oregon ( , ) is a U.S. state, state in the Pacific Northwest region of the United States. It is a part of the Western U.S., with the Columbia River delineating much of Oregon's northern boundary with Washington (state), Washington, while t ...
, also ran for reelection. Both Udalls won but Smith lost.
In November 2014 Udall won re-election to his senate seat, defeating Republican
Allen Weh by 57,312 vote
Tenure
He voted in favor of the
Don't Ask, Don't Tell Repeal Act of 2010,
FDA Food Safety Modernization Act
The Food Safety Modernization Act (FSMA) was signed into law by President Barack Obama on January 4, 2011. The FSMA has given the Food and Drug Administration (FDA) new authority to regulate the way foods are grown, harvested and processed. Th ...
,
DREAM Act
The Development, Relief, and Education for Alien Minors Act, known as the DREAM Act, is a United States legislative proposal that would grant temporary conditional residency, with the right to work, for illegal immigrants who entered the Unite ...
,
American Recovery and Reinvestment Act of 2009
The American Recovery and Reinvestment Act of 2009 (ARRA) (), nicknamed the Recovery Act, was a Stimulus (economics), stimulus package enacted by the 111th U.S. Congress and signed into law by President Barack Obama in February 2009. Developed ...
,
Patient Protection and Affordable Care Act
A patient is any recipient of health care services that are performed by healthcare professionals. The patient is most often ill or injured and in need of treatment by a physician, nurse, optometrist, dentist, veterinarian, or other health ...
,
Children's Health Insurance Program Reauthorization Act, and the
Lilly Ledbetter Fair Pay Act of 2009
The Lilly Ledbetter Fair Pay Act of 2009 (, ) is a landmark federal statute in the United States that was the first bill signed into law by U.S. President Barack Obama on January 29, 2009. The act amends Title VII of the Civil Rights Act of 19 ...
.
Udall was one of the first members of Congress to publicly express concern about the possibility of NSA overreach, a year before
Edward Snowden
Edward Joseph Snowden (born June 21, 1983) is a former National Security Agency (NSA) intelligence contractor and whistleblower who leaked classified documents revealing the existence of global surveillance programs.
Born in 1983 in Elizabeth ...
's 2013 disclosure of the
PRISM program.
On March 25, 2019, Udall announced that he would not run for reelection in 2020.
In November 2020, it was reported that Udall was being considered for
Secretary of the Interior in the
Biden administration
Joe Biden's tenure as the List of presidents of the United States, 46th president of the United States began with Inauguration of Joe Biden, his inauguration on January 20, 2021, and ended on January 20, 2025. Biden, a member of the Democr ...
.
Legislation

On March 19, 2013, Udall introduced into the Senate the
Sandia Pueblo Settlement Technical Amendment Act (S. 611; 113th Congress), a bill that would transfer some land to the
Sandia Pueblo
Sandia Pueblo (; Tiwa: Tuf Shur Tia) is a federally recognized tribe of Native American Pueblo people inhabiting a reservation of the same name in the eastern Rio Grande Rift of central New Mexico. It is one of 19 of New Mexico's Native Ameri ...
tribe.
Also during the
113th Congress, Udall introduced a proposed
amendment
An amendment is a formal or official change made to a law, contract, constitution, or other legal document. It is based on the verb to amend, which means to change for better. Amendments can add, remove, or update parts of these agreements. They ...
to the
Constitution
A constitution is the aggregate of fundamental principles or established precedents that constitute the legal basis of a polity, organization or other type of entity, and commonly determines how that entity is to be governed.
When these pri ...
that would reverse ''
Citizens United'' and allow limits on
outside spending in support of political candidates.
The Amendment won the approval of the
Senate Judiciary Committee
The United States Senate Committee on the Judiciary, informally known as the Senate Judiciary Committee, is a Standing committee (United States Congress), standing committee of 22 U.S. senators whose role is to oversee the United States Departm ...
on a 10–8 vote in July 2014.
In December 2014, Udall introduced a resolution condemning the
Indonesian mass killings of 1965–66
Large-scale killings and civil unrest primarily targeting members and supposed sympathizers of the Communist Party of Indonesia (PKI) were carried out in Indonesia from 1965 to 1966. Other affected groups included alleged communist sympathise ...
and calling for the declassification of documents on United States involvement in the genocide.
In March 2015, Udall sponsored S. 697, the Frank R. Lautenberg Chemical Safety for the 21st Century Act, a bill to amend and reauthorize the
Toxic Substances Control Act.
The legislation, as amended, was signed into law by President Barack Obama on June 22, 2016. It updated the nation's safety system for thousands of chemicals in products like cleaners, paints, carpets and furniture. The bill initially faced criticism over the balance between federal and state authority to regulate chemicals, but after changes to the legislation, it earned broader support, including from liberal members of the Senate and the President. It passed by a vote of 403-12 in the House and voice vote in the Senate.
In March 2019, he and
Rand Paul
Randal Howard Paul (born January 7, 1963) is an American politician serving as the Seniority in the United States Senate, junior United States senator from Kentucky since 2011.
A member of the Republican Party (United States), Republican ...
co-sponsored the bipartisan
AFGHAN Service Act to compensate members of the armed forces and repeal the 2001
Authorization for Use of Military Force Against Terrorists
The Authorization for Use of Military Force (AUMF; , ) is a joint resolution of the United States Congress which became law on September 18, 2001, authorizing the use of the United States Armed Forces against those responsible for the September ...
at the end of the Afghanistan withdrawal.
Committee assignments
Udall's committee assignments included:
*
Committee on Appropriations
**
Subcommittee on Agriculture, Rural Development, Food and Drug Administration, and Related Agencies
**
Subcommittee on Energy and Water Development
**
Subcommittee on Financial Services and General Government
**
Subcommittee on Interior, Environment, and Related Agencies (Ranking Member)
**
Subcommittee on Military Construction, Veterans Affairs, and Related Agencies
*
Committee on Foreign Relations
The United States Senate Committee on Foreign Relations is a standing committee of the U.S. Senate charged with leading foreign-policy legislation and debate in the Senate. It is generally responsible for authorizing and overseeing foreign ai ...
**
Subcommittee on African Affairs
**
Subcommittee on East Asian and Pacific Affairs
**
Subcommittee on International Development and Foreign Assistance, Economic Affairs and International Environmental Protection, and Peace Corps
**
Subcommittee on Western Hemisphere and Global Narcotics Affairs
*
Committee on Commerce, Science, and Transportation
*
Committee on Indian Affairs
The Senate Committee on Indian Affairs is a committee of the United States Senate charged with oversight in matters related to the American Indian, Native Hawaiian, and Alaska Native peoples. A Committee on Indian Affairs existed from 1820 to 1 ...
*
Committee on Rules and Administration
*
Commission on Security and Cooperation in Europe
*
International Narcotics Control Caucus
Caucuses
* Congressional Law Enforcement Caucus
* House Native American Caucus (Co-Vice Chair)
*
International Conservation Caucus (Co-Chair)
* Rural Caucus
* Sportsmen's Caucus
*
Afterschool Caucuses
The Afterschool Caucuses are bipartisan caucuses in the United States Congress established to build support for afterschool programs and increase resources for afterschool care. Senators Lisa Murkowski ( R- AK) and Tina Smith ( D- MN) chair the Se ...
Political positions
Gun law
In 2013, Udall voted for state-by-state reciprocity of
concealed carry
Concealed carry, or carrying a concealed weapon (CCW), is the practice of carrying a weapon (usually a sidearm such as a handgun), either in proximity to or on one's person or in public places in a manner that hides or conceals the weapon's pre ...
and for the names of gun owners to be protected and released only in select situations.
In 2016, within weeks of the
Orlando nightclub shooting
On , 2016, 29-year-old Omar Mateen shot and killed 49 people and wounded 53 more in a mass shooting at Pulse, a gay nightclub in Orlando, Florida, United States before Orlando Police officers fatally shot him after a three-hour standoff.
I ...
, he participated in a
sit-in
A sit-in or sit-down is a form of direct action that involves one or more people occupying an area for a protest, often to promote political, social, or economic change. The protestors gather conspicuously in a space or building, refusing to mo ...
at the House to demand votes on gun control legislation, saying, "We owe it to the
LGBT
LGBTQ people are individuals who are lesbian, gay, bisexual, transgender, queer, or questioning. Many variants of the initialism are used; LGBTQIA+ people incorporates intersex, asexual, aromantic, agender, and other individuals. The gro ...
community & all families harmed by gun violence to keep terror suspects fr
mobtaining guns."
In 2017, Udall had a "C−" rating from the
National Rifle Association
The National Rifle Association of America (NRA) is a gun rights advocacy group based in the United States. Founded in 1871 to advance rifle marksmanship, the modern NRA has become a prominent Gun politics in the United States, gun rights ...
and a "F" rating from the
Gun Owners of America
Gun Owners of America (GOA) is a gun rights organization in the United States. It makes efforts to differentiate itself from the larger National Rifle Association (NRA) and has publicly criticized the NRA on multiple occasions for what it consid ...
for his support of
gun control
Gun control, or firearms regulation, is the set of laws or policies that regulate the manufacture, sale, transfer, possession, modification, or use of firearms and ammunition by civilians.
Most countries allow civilians to own firearms, bu ...
.
Environmental issues
Udall has a lifetime score of 96% from the
League of Conservation Voters
The League of Conservation Voters (LCV) is an American environmental advocacy group. LCV says that it "builds political power for people and the planet." Through its affiliated super PAC, it is a major supporter of the Democratic Party. The org ...
. In 2018 he received the
Sierra Club
The Sierra Club is an American environmental organization with chapters in all 50 U.S. states, Washington, D.C., Washington D.C., and Puerto Rico. The club was founded in 1892, in San Francisco, by preservationist John Muir. A product of the Pro ...
's top award for public officials, the Edgar Wayburn Award.
In September 2019, Udall was one of eight senators to sign a bipartisan letter to congressional leadership requesting full and lasting funding of the Land and Water Conservation Act to aid national parks and public lands, benefit the $887 billion American outdoor recreation economy, and "ensure much-needed investment in our public lands and continuity for the state, tribal, and non-federal partners who depend on them."
In late 2019, Udall co-sponsored the
Green New Deal
The Green New Deal (GND) calls for public policy to address climate change, along with achieving other social aims like job creation, economic growth, and reducing economic inequality.
The name refers to the New Deal, a set of changes and ...
, a policy introduced in the
U.S. Senate
The United States Senate is a chamber of the bicameral United States Congress; it is the upper house, with the U.S. House of Representatives being the lower house. Together, the Senate and House have the authority under Article One of the ...
that would establish net-zero carbon emissions by 2050.
Ambassador to New Zealand and Samoa

On July 16, 2021, President
Joe Biden
Joseph Robinette Biden Jr. (born November 20, 1942) is an American politician who was the 46th president of the United States from 2021 to 2025. A member of the Democratic Party (United States), Democratic Party, he served as the 47th vice p ...
nominated Udall to serve as
United States Ambassador to New Zealand and
Samoa
Samoa, officially the Independent State of Samoa and known until 1997 as Western Samoa, is an island country in Polynesia, part of Oceania, in the South Pacific Ocean. It consists of two main islands (Savai'i and Upolu), two smaller, inhabited ...
.
On September 22, a hearing on his nomination was held before the
Senate Foreign Relations Committee
The United States Senate Committee on Foreign Relations is a standing committee of the U.S. Senate charged with leading foreign-policy legislation and debate in the Senate. It is generally responsible for authorizing and overseeing foreign a ...
. On October 19, his nomination was reported favorably out of committee. The Senate confirmed Udall by voice vote on October 26.
Udall presented his credentials to the
New Zealand governor-general,
Dame Cindy Kiro
Dame Alcyion Cynthia Kiro () ( Simpson; born 1958) is a New Zealand public-health academic, administrator, and advocate, who has been serving as the 22nd governor-general of New Zealand since 21 October 2021. Kiro is the first Māori woman an ...
, in
Wellington
Wellington is the capital city of New Zealand. It is located at the south-western tip of the North Island, between Cook Strait and the Remutaka Range. Wellington is the third-largest city in New Zealand (second largest in the North Island ...
on December 2, 2021. On February 17, 2022, he virtually presented his credentials to the
Head of State of Samoa,
Afioga Tuimalealiʻifano Vaʻaletoʻa Sualauvi II.
Electoral history
Personal life
Udall and his wife, the former Jill Cooper, have a daughter. Tom Udall is the son of former Arizona Congressman and Interior Secretary
Stewart Lee Udall, nephew of
Arizona
Arizona is a U.S. state, state in the Southwestern United States, Southwestern region of the United States, sharing the Four Corners region of the western United States with Colorado, New Mexico, and Utah. It also borders Nevada to the nort ...
Congressman Morris Udall, and first cousin of former Colorado U.S. Senator
Mark Udall,
double second cousin of former
Oregon
Oregon ( , ) is a U.S. state, state in the Pacific Northwest region of the United States. It is a part of the Western U.S., with the Columbia River delineating much of Oregon's northern boundary with Washington (state), Washington, while t ...
U.S. Senator
Gordon Smith, and second cousin of Utah U.S. Senator
Mike Lee
Michael Shumway Lee (born June 4, 1971) is an American lawyer and politician serving as the senior United States senator from Utah, a seat he has held since 2011. A member of the Republican Party, Lee became Utah's senior senator in 2019, whe ...
.
Udall is a member of
The Church of Jesus Christ of Latter-day Saints
The Church of Jesus Christ of Latter-day Saints, informally known as the LDS Church or Mormon Church, is a Nontrinitarianism, nontrinitarian Restorationism, restorationist Christianity, Christian Christian denomination, denomination and the ...
.
See also
*
Lee–Hamblin family
References
External links
*
Biographyat
Ballotpedia
Ballotpedia is a nonprofit and nonpartisan online political encyclopedia that covers federal, state, and local politics, elections, and public policy in the United States. The website was founded in 2007. Ballotpedia is sponsored by the Lucy Bur ...
Congressional profileat
GovTrack
GovTrack.us is a website developed by then-student Joshua Tauberer. It is based in Washington, D.C., and was launched as a hobby. It enables its users to track the bills and members of the United States Congress. Users can add trackers to certain ...
Financial information (federal office)at
OpenSecrets
OpenSecrets is a nonprofit organization based in Washington, D.C., that tracks and publishes data on campaign finance and lobbying, including a revolving door database which documents the individuals who have worked in both the public sector an ...
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{{DEFAULTSORT:Udall, Tom
1948 births
20th-century New Mexico politicians
21st-century New Mexico politicians
Alumni of Downing College, Cambridge
Ambassadors of the United States to New Zealand
Ambassadors of the United States to Samoa
American Latter Day Saints
American people of Swiss descent
Candidates in the 1982 United States elections
Candidates in the 1988 United States elections
Democratic Party members of the United States House of Representatives from New Mexico
Democratic Party United States senators from New Mexico
Lawyers from Tucson, Arizona
Living people
New Mexico attorneys general
Politicians from Santa Fe, New Mexico
Politicians from Tucson, Arizona
Prescott College alumni
Udall family
University of New Mexico School of Law alumni
21st-century United States senators
20th-century members of the United States House of Representatives
21st-century members of the United States House of Representatives