A
by-election
A by-election, also known as a special election in the United States and the Philippines, or a bypoll in India, is an election used to fill an office that has become vacant between general elections.
A vacancy may arise as a result of an incumben ...
for the
House of Commons constituency of
Hartlepool
Hartlepool ( ) is a seaside resort, seaside and port town in County Durham, England. It is governed by a unitary authority borough Borough of Hartlepool, named after the town. The borough is part of the devolved Tees Valley area with an estimat ...
in the former county of
Cleveland
Cleveland is a city in the U.S. state of Ohio and the county seat of Cuyahoga County. Located along the southern shore of Lake Erie, it is situated across the Canada–U.S. maritime border and approximately west of the Ohio-Pennsylvania st ...
,
England
England is a Countries of the United Kingdom, country that is part of the United Kingdom. It is located on the island of Great Britain, of which it covers about 62%, and List of islands of England, more than 100 smaller adjacent islands. It ...
, was held on 6 May 2021. The by-election was triggered following the resignation of
Labour Member of Parliament (MP)
Mike Hill, who resigned over
allegations of sexual harassment. It was held on 6 May 2021 alongside
elections
An election is a formal group decision-making process whereby a population chooses an individual or multiple individuals to hold public office.
Elections have been the usual mechanism by which modern representative democracy has operated ...
to the
Borough Council
A borough is an administrative division in various English-speaking countries. In principle, the term ''borough'' designates a self-governing walled town, although in practice, official use of the term varies widely.
History
In the Middle Ag ...
,
Tees Valley Mayor
The Tees Valley mayor (also styled as the ''metro mayor of the Tees Valley'' and the ''mayor of the Tees Valley'') is a combined authority mayor in England, first elected in May 2017. The mayor is leader of the Tees Valley Combined Authority.
...
, and
Cleveland Police and Crime Commissioner.
This was the first by-election to the
parliament elected in 2019.
The 21-month gap between the last by-election in
Brecon and Radnorshire in August 2019 and the polling day of the by-election in Hartlepool was the longest since the
Second World War
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
. The 21-month gap was partially attributed to the
COVID-19 pandemic
The COVID-19 pandemic (also known as the coronavirus pandemic and COVID pandemic), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), began with an disease outbreak, outbreak of COVID-19 in Wuhan, China, in December ...
.
The
Conservative
Conservatism is a cultural, social, and political philosophy and ideology that seeks to promote and preserve traditional institutions, customs, and values. The central tenets of conservatism may vary in relation to the culture and civiliza ...
candidate,
Jill Mortimer, won the by-election with 51.9% of the vote and a swing from
Labour of almost 16%.
It became only the second time since 1982 that the UK governing party gained a seat in a by-election,
and was the first Conservative win in the constituency since its creation in 1974, with a majority of 6,940 votes.
Background
Constituency
Hartlepool, named after the
town of the same name, had been held by the Labour Party since
1964
Events January
* January 1 – The Federation of Rhodesia and Nyasaland is dissolved.
* January 5 – In the first meeting between leaders of the Roman Catholic and Orthodox churches since the fifteenth century, Pope Paul VI and Patria ...
. The seat includes the town of Hartlepool itself and the nearby villages of
Hart,
Elwick,
Greatham,
Newton Bewley
Newton Bewley is a village and civil parish in the borough of Hartlepool in County Durham, England. It is situated between the towns of Hartlepool
Hartlepool ( ) is a seaside resort, seaside and port town in County Durham, England. It is gov ...
and
Dalton Piercy
Dalton Piercy is a village and civil parish in the borough of Hartlepool, County Durham, in England. The population of the civil parish taken at the 2011 Cernsus was 289.
Location
Dalton Piercy is situated 1 mile east of the A19 and 1 mile t ...
.
In the
2016 European Union membership referendum, the
Hartlepool Council area, which covers the same area as the constituency, voted 69.6% to 30.4% to
leave the European Union (EU). The seat is part of the "
red wall", a set of constituencies in the northern half of England that historically supported the Labour Party but where the party has been challenged by increasing Conservative support.
History
Hill was due to face an employment tribunal later in the year following allegations of sexual harassment and victimisation.
He was suspended from the Labour Party in September 2019 over allegations of sexual harassment, but reinstated in October 2019.
In January 2020, Hill's request for anonymity was turned down in an upcoming
employment tribunal related to the accusations. The alleged victim stated that she had also made a report to the
Metropolitan Police at the time of the original accusations. On 16 March 2021, Hill announced his resignation with immediate effect.
Candidates and timetable
There were sixteen candidates, the most for any UK Commons by-election since
Haltemprice & Howden in 2008. The full list was published on 8 April 2021.
NHS
The National Health Service (NHS) is the term for the publicly funded health care, publicly funded healthcare systems of the United Kingdom: the National Health Service (England), NHS Scotland, NHS Wales, and Health and Social Care (Northern ...
doctor and former MP
Paul Williams Paul Williams may refer to:
Authors
* Paul Williams (Crawdaddy) (1948–2013), American music and science fiction journalist; founder of ''Crawdaddy'' and the Philip K. Dick Society
* Paul Williams (Irish journalist) (born 1964), Irish journalis ...
was selected on 18 March as the Labour candidate.
Williams represented the nearby constituency of
Stockton South but
lost his seat at the
2019 election. He had been standing for the position of
Cleveland Police and Crime Commissioner, to be elected in May 2021, but withdrew from that contest in order to stand in Hartlepool.
On 17 March,
Reform UK
Reform UK is a right-wing populist political party in the United Kingdom. Nigel Farage has been Leader of Reform UK and Richard Tice deputy leader since 2024. It has five members of Parliament (MPs) in the House of Commons and one membe ...
leader
Richard Tice
Richard James Sunley Tice (born 13 September 1964) is a British businessman and politician who has been Member of Parliament (MP) for Boston and Skegness and Deputy Leader of Reform UK since 2024, having previously been the chairman of the p ...
, who contested the seat in 2019, told
LBC
LBC (originally the London Broadcasting Company) is a British phone-in and talk radio station owned and operated by Global and based in its headquarters in London. It was the UK's first licensed commercial radio station, and began to broadc ...
that the party intended to stand a candidate. On 31 March, the party selected businessman John Prescott (no relation to the
former deputy prime minister of the same name) as their candidate. He was the party's candidate for Stockton South in the 2019 election, under its previous name of the Brexit Party.
The
Northern Independence Party (NIP) announced on 17 March that it would contest the by-election. Later that month, it selected as its candidate former Labour MP
Thelma Walker, who represented the
West Yorkshire
West Yorkshire is a Metropolitan counties of England, metropolitan and Ceremonial counties of England, ceremonial county in the Yorkshire and the Humber region of England. It borders North Yorkshire to the north and east, South Yorkshire and De ...
constituency of
Colne Valley
The Colne Valley is a steep sided valley on the east flank of the Pennine Hills in the English county of West Yorkshire. It takes its name from the River Colne which rises above the town of Marsden and flows eastward towards Huddersfield. ...
, but
lost her seat at the
2019 election.
Due to the NIP not being registered with the
Electoral Commission
An election commission is a body charged with overseeing the implementation of electioneering process of any country. The formal names of election commissions vary from jurisdiction to jurisdiction, and may be styled an electoral commission, a c ...
by the deadline on 8 April, Walker was listed on the ballot as an
Independent
Independent or Independents may refer to:
Arts, entertainment, and media Artist groups
* Independents (artist group), a group of modernist painters based in Pennsylvania, United States
* Independentes (English: Independents), a Portuguese artist ...
.
On 20 March, the
Social Democratic Party
The name Social Democratic Party or Social Democrats has been used by many political parties in various countries around the world. Such parties are most commonly aligned to social democracy as their political ideology.
Active parties
Form ...
(SDP) announced its intention to stand in the by-election. On 29 March, the SDP announced that its candidate would be David Bettney, a former
regimental sergeant major
Regimental sergeant major (RSM) is an appointment that may be held by a warrant officer (WO) in the British Army, the Royal Marines, and the armies of many other Commonwealth and former Commonwealth nations. It is also an actual rank in the Iri ...
in the
Light Dragoons
The Light Dragoons (LD) is a cavalry regiment in the British Army. The regiment has a light cavalry role and specialises in mounted and dismounted reconnaissance. The Light Dragoons recruit mainly in Northern England, from County Durham, Northu ...
.
On 22 March, Gemma Evans from the
Women's Equality Party
The Women's Equality Party (WEP) was a feminist political party set up in the United Kingdom in 2015. The idea was conceived by Catherine Mayer and Sandi Toksvig at the Women of the World Festival, when they concluded that there was a need f ...
expressed her intention to stand.
On 24 March, the
North East Party announced that former Labour MP and founding party member
Hilton Dawson would be its candidate for the by-election.
On 26 March, the
Conservative Party selected farmer and
Hambleton District
Hambleton was a local government district in North Yorkshire, England. The administrative centre was Northallerton, and the district included the outlying towns and villages of Bedale, Thirsk, Great Ayton, Stokesley, and Easingwold.
The di ...
Cllr Jill Mortimer as its candidate in the by-election. She was previously the Conservative candidate in
Leeds East at the 2019 election. Incumbent Conservative
Tees Valley Mayor
The Tees Valley mayor (also styled as the ''metro mayor of the Tees Valley'' and the ''mayor of the Tees Valley'') is a combined authority mayor in England, first elected in May 2017. The mayor is leader of the Tees Valley Combined Authority.
...
Ben Houchen was reportedly unhappy with the choice of candidate, due to her not being from the area, and declined to endorse Mortimer at the time of her selection.
On 31 March, the
Official Monster Raving Loony Party
The Official Monster Raving Loony Party (OMRLP) is a political party established in the United Kingdom in 1982 by the musician David Sutch, also known as Screaming Lord Sutch, 3rd Earl of Harrow, or simply Lord Sutch. It is notable for its de ...
selected party treasurer Nick "The Incredible Flying Brick" Delves as its candidate.
On 2 April, local pub owner Adam Gaines announced his intention to stand as an independent candidate.
On the same day, the
Liberal Democrats selected schoolteacher Andy Hagon as their candidate. Hagon was the party's candidate for the constituency at both the 2017 and 2019 elections.
On 6 April, former journalist and local businesswoman Samantha Lee announced her intention to stand as an independent candidate lobbying for Hartlepool to be awarded
freeport status.
On 7 April, Rachel Featherstone, a lecturer at
Teesside University
Teesside University is a public university with its main campus in Middlesbrough, North Yorkshire in North East England. It was officially opened as ''Constantine Technical College'' in 1930, before becoming a polytechnic in 1969, and finally g ...
, was selected as the
Green Party
A green party is a formally organized political party based on the principles of green politics, such as environmentalism and social justice.
Green party platforms typically embrace Social democracy, social democratic economic policies and fo ...
candidate.
Featherstone was previously her party's candidate for
Sunderland Central
Sunderland Central is a List of United Kingdom Parliament constituencies, constituency in the House of Commons of the United Kingdom, House of Commons of the Parliament of the United Kingdom, UK Parliament. It is represented by the Labour Party ...
in 2015, 2017, and 2019, and was top of the Green Party list in
North East England
North East England, commonly referred to simply as the North East within England, is one of nine official regions of England. It consists of County DurhamNorthumberland, , Northumberland, Tyne and Wear and part of northern North Yorkshire. ...
at the
2019 European election.
On 8 April, London-based businessman Ralph Ward-Jackson, descendant of
West Hartlepool
West Hartlepool was a predecessor of Hartlepool, County Durham, England. It developed in the Victorian era and took the name from its western position in the parish of what is now known as the Headland.
The former town was originally formed ...
founder and 19th-century Conservative MP for
The Hartlepools,
Ralph Ward Jackson, declared that he had filed to run, citing the town's lack of a hospital and the closure of the magistrates' court.
Ward-Jackson had previously been selected by the local Conservative Party to contest the seat at the 2019 general election, but withdrew to support the
Brexit Party
Reform UK is a right-wing populist political party in the United Kingdom. Nigel Farage has been Leader of Reform UK and Richard Tice deputy leader since 2024. It has five members of Parliament (MPs) in the House of Commons and one membe ...
.
Campaign
Labour was criticised for the conduct of its selection process, which gave candidates one day to submit application papers. An unnamed Labour MP accused Labour's leadership of a "stitch-up", and alleged that the speed of Labour's selection had disadvantaged local party members.
Labour leader
The ''Labour Leader'' was a British socialist newspaper published for almost one hundred years. It was later renamed ''New Leader'' and ''Socialist Leader'', before finally taking the name ''Labour Leader'' again.
19th century
The origins of th ...
Keir Starmer
Sir Keir Rodney Starmer (born 2 September 1962) is a British politician and lawyer who has served as Prime Minister of the United Kingdom since 2024 and as Leader of the Labour Party (UK), Leader of the Labour Party since 2020. He previously ...
said that the local party had written to Labour headquarters to identify Paul Williams as their preferred choice. While Williams was a vocal advocate of a second referendum on EU membership, the constituency of Hartlepool supported Brexit by almost 70%; he was criticised when it was discovered that he had deleted his pro-EU tweets before his candidacy.
During the by-election campaign, Williams apologised for a tweet he posted in 2011: "Do you have a favourite Tory
MILF? Mind-blowing dinner table conversation". He was defended by Starmer, while Labour peer and former shadow Attorney General
Shami Chakrabarti
Sharmishta Chakrabarti, Baroness Chakrabarti (born 16 June 1969) is a British politician, barrister, and human rights activist. A member of the Labour Party, she served as the director of Liberty, a major advocacy group which promotes civil l ...
called for him to be replaced "immediately". Williams' campaign featured a pledge to return hospital services to the town, but was accused of hypocrisy after it emerged that he was a co-author of a clinical commissioning group report which recommended the closure of those services in 2013.
Early in the by-election campaign, Conservative candidate Jill Mortimer was criticised for being based in
North Yorkshire
North Yorkshire is a Ceremonial counties of England, ceremonial county in Northern England.The Unitary authorities of England, unitary authority areas of City of York, York and North Yorkshire (district), North Yorkshire are in Yorkshire and t ...
. When asked if Hartlepool was somewhere she spent a lot of time, Mortimer replied: "It hasn't been up until now, but it will be". Later in the campaign,
Deputy Leader of the Labour Party Angela Rayner
Angela Rayner (' Bowen; born 28 March 1980) is a British politician who has served as Deputy Prime Minister of the United Kingdom and Secretary of State for Housing, Communities and Local Government since 2024 United Kingdom general election, Jul ...
accused Mortimer of corruption. In a letter to
Conservative Party Chairman Amanda Milling
Dame Amanda Anne Milling (born 12 March 1975) is a British politician serving as Member of Parliament (MP) for Cannock Chase from the 2015 general election until losing her seat in 2024. She served as Minister without Portfolio in the UK cab ...
, Rayner requested the publication of a "full account" of Mortimer's time living in the
Cayman Islands
The Cayman Islands () is a self-governing British Overseas Territories, British Overseas Territory, and the largest by population. The territory comprises the three islands of Grand Cayman, Cayman Brac and Little Cayman, which are located so ...
. Milling described Rayner's accusation as a "desperate attack" that was "factually wrong and entirely disingenuous".
The by-election attracted considerable political attention, with Prime Minister
Boris Johnson
Alexander Boris de Pfeffel Johnson (born 19 June 1964) is a British politician and writer who served as Prime Minister of the United Kingdom and Leader of the Conservative Party (UK), Leader of the Conservative Party from 2019 to 2022. He wa ...
and
Conservative Party Chairman Amanda Milling
Dame Amanda Anne Milling (born 12 March 1975) is a British politician serving as Member of Parliament (MP) for Cannock Chase from the 2015 general election until losing her seat in 2024. She served as Minister without Portfolio in the UK cab ...
campaigning in the town for the Conservatives, while
Keir Starmer
Sir Keir Rodney Starmer (born 2 September 1962) is a British politician and lawyer who has served as Prime Minister of the United Kingdom since 2024 and as Leader of the Labour Party (UK), Leader of the Labour Party since 2020. He previously ...
, members of his
Shadow Cabinet, and the wider
Labour frontbench campaigned in the town for Labour. Campaigning temporarily was suspended following the
death of Prince Philip, Duke of Edinburgh
On 9 April 2021, Prince Philip, Duke of Edinburgh, the husband of Queen Elizabeth II of the United Kingdom and the other Commonwealth realms, and the longest-serving royal consort in history, died of old age at Windsor Castle at the age of 99.
...
.
On 22 April, it was reported that Independent candidate Chris Killick is a convicted sex offender.
He filmed a 62-second clip of a naked woman in her hotel room while she was unconscious in 2015; she said she woke up to Killick not knowing who he was or how she arrived in the hotel, and said that she was
drugged and raped.
In 2020, Killick was given a 30-month community order and fined £2,000, and ordered to pay £5,000 in compensation to his victim.
Killick did not mention his conviction on any election form or to those who signed his nomination papers,
describing his candidacy as "an experiment to see how much publicity I can get. Not by speaking about the offence I committed, but by speaking about the stuff I really care about."
In response, 1,400 people signed an
online petition
An online petition (or Internet petition, or e-petition) is a form of petition which is signed online, usually through a form on a website. Visitors to the online petition sign the petition by adding their details such as name and email address. T ...
calling for the government to prohibit sex offenders from standing for public office.
Opinion polls
Results

The result was the biggest swing towards an incumbent governing party in a by-election in the post war era; the record was formerly the
1945 Bournemouth by-election.
Previous result
Aftermath
The election result was widely seen as a blow to
Keir Starmer
Sir Keir Rodney Starmer (born 2 September 1962) is a British politician and lawyer who has served as Prime Minister of the United Kingdom since 2024 and as Leader of the Labour Party (UK), Leader of the Labour Party since 2020. He previously ...
, the incumbent
leader of the Labour Party. While
Peter Mandelson
Peter Benjamin Mandelson, Baron Mandelson, (born 21 October 1953) is a British politician, lobbyist and diplomat who has served as British Ambassador to the United States since February 2025.
A member of the Labour Party, Mandelson serve ...
put the blame on former leader
Jeremy Corbyn
Jeremy Bernard Corbyn (; born 26 May 1949) is a British politician who has been Member of Parliament (United Kingdom), Member of Parliament (MP) for Islington North (UK Parliament constituency), Islington North since 1983. Now an Independent ...
, and argued the party had not changed enough, some figures on the Labour left regarded the defeat as a repudiation of Starmer's centrist vision for Labour. Attention was especially focused on the idea that voters did not know what Starmer stood for, a conclusion Williams and Labour deputy leader
Angela Rayner
Angela Rayner (' Bowen; born 28 March 1980) is a British politician who has served as Deputy Prime Minister of the United Kingdom and Secretary of State for Housing, Communities and Local Government since 2024 United Kingdom general election, Jul ...
both agreed with.
On 23 August, ''
Business Insider
''Business Insider'' (stylized in all caps: BUSINESS INSIDER; known from 2021 to 2023 as INSIDER) is a New York City–based multinational financial and business news website founded in 2007. Since 2015, a majority stake in ''Business Inside ...
'' reported that
Boris Johnson
Alexander Boris de Pfeffel Johnson (born 19 June 1964) is a British politician and writer who served as Prime Minister of the United Kingdom and Leader of the Conservative Party (UK), Leader of the Conservative Party from 2019 to 2022. He wa ...
likely breached the
Ministerial Code
The Ministerial Code is a document setting out "rules" and standards for government ministers in the United Kingdom. Separate codes exist for ministers of the Scottish Government, the Northern Ireland Executive (based on the St Andrews Agreemen ...
by using taxpayer funds to take a
private jet
A business jet, private jet, or bizjet is a jet aircraft designed for transporting small groups of people, typically business executives and high-ranking associates. Business jets are generally designed for faster air travel and more personal ...
to campaign in Hartlepool.
A biography about Keir Starmer was published in February 2024 which reported that he considered resigning in the aftermath of the defeat in Hartlepool.
The book reported that Starmer wanted to quit as leader of the party before being persuaded to stay by close aides.
One of his former aides, Chris Ward, said that "Keir kept saying that he felt he would have to go, that the result showed the party was going backwards and he saw it as a personal rejection. I told him it was far too soon for that kind of thing, but it was a rocky few hours."
See also
*
2004 Hartlepool by-election, an earlier by-election in this constituency
*
2021 Hartlepool Borough Council election, simultaneous local council elections
*
2021 Airdrie and Shotts by-election, a UK Parliament by-election that took place a week later
*
2021 Chesham and Amersham by-election
A by-election was held in the United Kingdom Parliament constituency of Chesham and Amersham on 17 June 2021, following the death of the sitting member, Dame Cheryl Gillan, on 4 April 2021. Gillan had served as MP for the constituency since 199 ...
, a UK Parliament by-election that was triggered around the same time
*
2021 Batley and Spen by-election
A UK Parliamentary by-elections, by-election was held in the UK United Kingdom Parliament constituencies, parliamentary constituency of Batley and Spen (UK Parliament constituency), Batley and Spen on 1 July 2021, following the resignation of th ...
, a by-election triggered at around the same time by the resignation of another
red wall Labour MP
*
United Kingdom by-election records
Parliamentary by-elections in the United Kingdom occur when a Member of Parliament (MP) vacates a House of Commons seat (due to resignation, death, disqualification or expulsion) during the course of a parliament.
Scope of these records
Altho ...
; this election is notable in that the government party gained a seat they had not previously held.
Notes
References
{{DEFAULTSORT:Hartlepool by-election, 2021
2021 elections in the United Kingdom
2021 in England
By-elections to the Parliament of the United Kingdom in County Durham constituencies
2021 Hartlepool
Politics of the Borough of Hartlepool
2020s in County Durham