Jeremy Corbyn must change to save "the soul of the Labour Party", his deputy Tom Watson has declared.

Theresa May has warned Conservative activists not to indulge in "purges and retribution" against anti-Brexit MPs after three parliamentarians quit to join a breakaway bloc.

Too many Jewish people still see Labour as being "unwilling" to tackle anti-Semitism within its ranks, Sadiq Khan has warned.

Local Tory bosses have warned their MPs not to block a no-deal Brexit ahead of a looming Commons showdown this week.

The new Independent Group of MPs would support Theresa May if she faced another no confidence vote in the Commons, one of its members has indicated.

Jeremy Corbyn has denied bullying exists on a "wide scale" in the Labour Party following the resignation of nine MPs who cited rising anti-Semitism under his leadership.

Labour is “moving towards” backing a second Brexit referendum that could see Britain end up staying in the European Union, John McDonnell has said.

Ian Austin has become the ninth Labour MP to quit the party in the past four days, saying he had become "ashamed" of its direction under Jeremy Corbyn.

Labour has reported one of the rebel MPs who quit this week to the Information Commissioner over claims she tried to access sensitive data held by the party.

Jeremy Corbyn has been warned that a further raft of Labour MPs are ready to quit the party unless he backs calls for a second EU referendum, it has been reported.

Dozens of Tory MPs are preparing to rebel against the Government in order to prevent a no-deal Brexit, Theresa May has been warned.

Theresa May has insisted the Conservative party is not "warped" like Labour after three MPs who dramatically resigned the whip argued it had shifted to the right.

PoliticsHome's by-election breakdown is back in business. Join us every week as we give you the run down on who's in, who's out, who's lost the plot.

Conservative MP Christopher Davies has been charged with falsifying two expenses claims, the Crown Prosecution Service has confirmed.

Philip Hammond has rebuked Gavin Williamson over comments he made that were said to have angered China.

One of the rebel Tory MPs who quit to join Labour colleagues in the Independent Group has said she wants to destroy her old party.

Jeremy Corbyn has challenged the eight MPs who quit Labour this week to resign their seats and call by-elections.

Momentum is launching a major drive to oust the former Labour MPs who quit the party to join The Independent Group.

Labour has suspended Derek Hatton’s membership of the party just days after it was confirmed that he had been readmitted.

Barry Gardiner has launched an outspoken attack on Labour's "appalling" decision to allow Derek Hatton back into the party.

Former Tory MP Anna Soubry today heaped praise on the austerity imposed on the country under David Cameron as she teamed up with ex-Labour MPs in a new Commons grouping.

Jeremy Corbyn's office has dismissed the new Independent Group of former Labour and Tory MPs as an “establishment coalition” based on an approach that voters have already rejected.

Three Conservative MPs have stunned Westminster by quitting the party as they took aim at Theresa May's handling of Brexit and accused the Tories of a "shift to the right".

Theresa May and Jeremy Corbyn went going head-to-head after both Conservative and Labour MPs quit their parties to join the new Independent Group. Here's how it unfolded on our liveblog.