Labour and the Greens appear to have the most to fear from a new left-wing party but UK politics is very volatile.

Labour Party ex-leader Jeremy Corbyn said Thursday that he's forming a new left-leaning U.K. political party to advocate "mass redistribution of wealth and power” and take on his former colleagues at the ballot box.

Corbyn, the former Labour Party leader, aims to outflank his protégé, Prime Minister Keir Starmer, by harping on voter discontent over welfare cuts and support for Israel.