David Macdonald says he is ‘doing the unprecedented’ to shore up the remain vote. / The top Change UK choice in Scotland for this week’s European elections has written an open letter to his fellow party candidates urging them to consider following his lead and voting for the Liberal Democrats or other remain parties.

Anna Soubry has expressed frustration and sadness at the split in Change UK which cost the fledging party six of its 11 MPs this week, saying Chuka Umunna, the most prominent of the quitters, had “made a very serious mistake”.

Struggling party – which endured a painful split just nine days ago – now has its third name in just four months.

Labour’s shadow cabinet needs to put its weight fully behind the push for a second Brexit referendum, the Independent Group (TIG) of MPs has said.

Change UK leader wants to contrast her party’s remain vision with that of Brexit party. / Heidi Allen, the leader of the pro-remain Change UK party, has challenged the Brexit party leader, Nigel Farage, to a live TV debate before the European elections.

Much-anticipated move by former Tory MP follows her split with Change UK in June.

Chuka Umunna, who left Labour in February to found the Independent Group, has switched party once again and joined the Liberal Democrats.

Richard Porritt, Steve Anglesey and Geri Scott return to delve into yet another chaotic week in British politics. The team talk the Independent Group and ask the question 'who is next?'