Luciana Berger

Faced a no-confidence motion in her Liverpool Wavertree constituency earlier in February that was withdrawn after it emerged that one of her key opponents within the local party called her a “disruptive Zionist”. An MP since 2010, she resigned from the shadow cabinet in June 2016. She has been a persistent critic of the Labour leadership and has faced antisemitic abuse.

For my part, I have become embarrassed and ashamed to remain in the Labour party. I have not changed – the core values of equality for all, opportunities for all, anti-racism against all and social justice. The values which I hold really dear and which led me to join the Labour party as a student 20 years ago remain who I am. And yet these values have been consistently and constantly devalued, undermined, violated and attacked as the Labour party today refuses to put my constituents and our country before party interest.”

Chris Leslie

MP for Nottingham East since 2010. Held various junior ministerial posts and was shadow chief secretary to the Treasury and shadow chancellor of the exchequer. A vocal critic of Jeremy Corbyn, he lost a vote of no confidence among members of his constituency party in September. Last week, he said Labour’s stance on Brexit was “not acceptable” and that the party political system was “shattered” and “broken”.

We did everything we could to save it [Labour]. But it has now been hijacked by the machine politics of the hard left. Our values haven’t changed … But British politics is now well and truly broken. In all conscience, we can no longer knock on doors and support a government led by Jeremy Corbyn or the team around him. The evidence of Labour’s betrayal on Europe is now visible for all to see … Choosing to stand by while our constituents’ lives and future opportunities are hurt by Brexit is a fundamental violation of Labour’s traditional values.

Angela Smith

The former lecturer has represented Penistone and Stocksbridge since 2010. Supports a second referendum on Brexit and tried to deliver a petition to Labour to that effect, which was turned away. She was one of several MPs to have a motion of no-confidence in her passed by her local constituency party. Smith later called them a “a cabal of hard left members”.

I cannot, in all conscience, continue to affiliate with a Labour party that I consider unfit for government. It is not alone in this; our politics is broken and all the main parties are incapable of inspiring confidence in the future. The level of alienation from the political process on the part of the people is at a record high, with the chaos and conflict characterising Brexit encapsulating perfectly the sense of deadlock and hopelessness which pervades our political culture.

Gavin Shuker

The MP for Luton South since 2010, he has also lost a no-confidence vote, which he blamed on a “handful of people” . He has said some MPs are at “breaking point” and has been critical of Jeremy Corbyn’s handling of antisemitism. Supported Liz Kendall’s campaign to be Labour leader in 2015.

I have today resigned my membership of the Labour party. My decision to leave the party is rooted in my commitment to the constituents of Luton South and to making decisions in their best interests. Today, the Labour party is riddled with antisemitism, it presents a threat to our national security and it’s perfectly content to enable the hard Tory Brexit that will directly and negatively affect people in Luton.

Ann Coffey

Another longstanding MP, Coffey has represented Stockport since 1992.

I spent 20 years working as a social worker with families [and] … joined the Labour party 41 years ago to elect an government that understood the real opportunity for families only comes when the right policies are in place. I am proud of the achievements of the last Labour government, and thought I would be in the Labour party for the rest of my life. But political parties are not an end in themselves … The Labour party has lost sight of this and … any criticism of the leadership is responded to with abuse and accusations of treachery … the current leadership has been successful in changing the party beyond recognition and in doing so failing those who have supported Labour all their lives. Loyalty cannot be an end in itself, so I leave the party with great sadness.

Mike Gapes

MP for Ilford South since the 1992 general election. Last year, he said he could quit the party whip over Corbyn’s handling of antisemitism. Gapes said he felt “tainted and sickened” by the charge of racism hanging over the party he joined 50 years ago and added that he was agonising over what to do next.

I am furious that the Labour leadership is complicit in facilitating Brexit, which will cause great economic, social and political damage to our country. Jeremy Corbyn and those around him are on the wrong side on so many international issues – from Russia, to Syria, to Venezuela. A Corbyn Labour government would threaten our national security and international alliances.”

Chuka Umunna

MP for Streatham since 2010 and shadow business secretary from 2011 to 2015. A former candidate for the party leadership, he has criticised Jeremy Corbyn in the past over his stance on Brexit. After the last election he vowed to back the leader but has been the subject of continuous recent speculation over his future in the party.