Luciana Berger won her seat as a Labour candidate before joining Change UK.

Luciana Berger has become the latest MP to join the Liberal Democrat party. Ms Berger – who is the MP for Liverpool Wavertree – has switched allegiance to the Lib Dems as she believes she believes she is now with the best party to stop Brexit.

Ms Berger won her seat in Liverpool Wavertree as a Labour candidate in the 2017 snap general election. But she left Labour in February 2019 – citing antisemitism within the party as a major factor – and helped to form The Independent Group.

The Independent Group then rebranded as Change UK for the European Elections. Following the newly-formed centrist party’s underwhelming results in the May elections, Ms Berger walked away from Change UK.

She initially stated that she would sit as an independent MP in the House of Commons. But four months later, Ms Berger has joined the Lib Dems. She is the fourth MP to defect to the Lib Dems, proving that Jo Swinson’s party might be a force to be reckoned with if a general election is called.

Here, we take a look at the other three MPs that the Lib Dems have acquired since the 2017 election.

Phillip Lee

Phillip Lee produced a moment of parliamentary history on Tuesday when he crossed the floor and sat with the Lib Dems. The MP for Bracknell’s defection meant that the Conservatives lost their working majority on a momentous day for UK politics.

Mr Lee – who is a qualified doctor – has been an MP since 2010 but will now stand for the Lib Dems if there is a snap election called. He cited the party’s handling of Brexit as a major reason behind his decision.

Chuka Umunna

Chuka Umunna was the headline name when 11 MPs broke away from Labour and the Conservatives to form The Independent Group. Shortly after its formation, TIG announced that Mr Umunna was their spokesperson.

But like Ms Berger, the MP for Streatham left TIG after the European Elections. The former Shadow Business Secretary joins the Lib Dems just one week after leaving TIG.

Sarah Wollaston

Like Ms Berger and Mr Umunna, Sarah Wollaston joined the Lib Dems after leaving Change UK. However, Ms Wollaston was previously a Conservative MP, while Ms Berger and Mr Umunna were originally Labour politicians.

Ms Wollaston is also a qualified doctor and she served in the Health Select Committee in the House of Commons. The MP for Totnes is pro-Remain and this is a major factor behind her move to the Lib Dems.