Deep splits with Change UK have burst into the open after Anna Soubry criticised party leader Heidi Allen's "bizarre" idea that people should vote tactically for the Lib Dems in some parts of the UK.
Labour suffered a wipeout in Scotland as the party suffered its worst ever night north of the Border.
The Liberal Democrats are the "strongest Remain force in British politics", leader Sir Vince Cable has said - as pro-EU rivals Change UK failed to make a breakthrough at the European elections.
Boris Johnson has warned that the Tories risk being "fired" by voters over Brexit as the EU elections saw the party slump to its lowest share of the national vote ever.
The Brexit Party has secured a huge victory in the European elections as voters took out their anger on the Conservatives and Labour.
Emily Thornberry has launched an extraordinary attack on Labour's policy on Brexit as the party headed for major losses in the European elections.
A top Labour candidate has launched an outspoken attack on the party's European election campaign as he apologised to members for its "humiliations" at the ballot box.
Trade union boss Len McCluskey has reignited his feud with Labour’s Tom Watson by accusing him of an “ineffective” attempt to undermine Jeremy Corbyn over a second EU referendum.
Chancellor Philip Hammond has warned Tory leadership candidates that they will not "survive" any attempt to force a no-deal Brexit through Parliament.
John McDonnell has said Labour is on course for a "good kicking" in the European elections as he defended his party's move to try and "bring people together" over Brexit.
Michael Gove has confirmed that he will run to be the next Conservative party leader and Prime Minister.
Cabinet minister Liz Truss has ruled herself out of the race to succeed Theresa May as Tory leader, saying she does not want to "prolong" the contest.
Tom Watson has warned Jeremy Corbyn that Labour will lose the next general election unless it firmly backs holding a second EU referendum.
Michael Gove is today expected to throw his hat into the ring for the Conservative leadership by pitching himself as a "unity candidate".
Former Cabinet ministers Andrea Leadsom and Dominic Raab have joined the race to succeed Theresa May as Conservative leader and Prime Minister.
Change UK MP Chuka Ummana has called for more co-operation between pro-Remain parties to prevent “a choice between Jeremy Corbyn and Boris Johnson”.
Matt Hancock has become the latest Tory MP to announce that he is running to succeed Theresa May as Prime Minister.
Rory Stewart has said he could not serve in a government led by Boris Johnson - and suggested the former Foreign Secretary misled him about pursuing a no-deal Brexit.
Amber Rudd has ruled herself out of the running for Tory leader and hinted that she could back Boris Johnson's bid for the job.
MPs and firefighters have criticised Theresa May for citing her response to the Grenfell tragedy as part of her legacy during her resignation speech.
Jo Swinson has demanded the Electoral Commission launch an investigation after EU citizens were turned away from polling stations during the European elections.
Boris Johnson has vowed to take the UK out of the EU “deal or no deal” at the end of October if he becomes Prime Minister.
Sir Vince Cable has kicked off the Liberal Democrat leadership race as he confirmed he will stand down at the end of July.
A top Tory MP today quit his job as chair of a powerful backbench committee as he confirmed he was mulling a bid for Downing Street.
Theresa May has fired the starting gun on the long-awaited Conservative leadership campaign - paving the way for a bitter contest to succeed her in Downing Street.
Jeremy Corbyn has called on Theresa May's successor to call an "immediate" general election.
Tory leadership hopefuls have paid tribute to Theresa May as they began positioning themselves for the race to succeed her as Prime Minister.
A Conservative vice chair has resigned her job in order to throw her weight behind Dominic Raab's expected bid for the Tory leadership.
Ukip deputy leader Mike Hookem launched a scathing attack on boss Gerard Batten as he dramatically quit his post and launched a bid for the top job.
Theresa May has fired the starting gun on the Tory leadership race by confirming she will leave Downing Street within weeks.
Theresa May announced her resignation date on the steps of Downing Street today.
Boris Johnson could be routed alongside dozens of high-profile Tory MPs by a Brexit Party surge in the next general election, a new analysis has concluded.
Theresa May is expected to announce on Friday that she is resigning as Prime Minister.
A Labour government would reform school curriculums in England to introduce mandatory lessons on climate change, the party has announced.
Jeremy Hunt has called on Theresa May to scrap her flagship Brexit bill rather than force Tory MPs in Leave-backing seats to support it.
Ex-Defence Secretary Gavin Williamson has revealed he is backing Boris Johnson to be the next Tory leader and Prime Minister.