As embattled British Prime Minister Keir Starmer faces a likely leadership contest, several rivals are getting into position to stand against him to lead the Labour party and the country.

Andy Burnham, Angela Rayner and Wes Streeting are all potential candidates for the top job.

Keir Starmer has thrown down the gauntlet to his potential rivals, defying calls to quit as Britain’s prime minister and instead challenging his would-be opponents to launch a…