Keir Starrmer appeared alomgside Andy Burnham in a rare show of unity at a campaign event this week (Alamy) 4 min read3 hr An MP who recently lost the Labour whip has said that Keir Starmer’s leadership is “now beyond the point of no return” and that he expects Andy Burnham to take over soon. Karl Turner, the MP for Kingston upon Hull East, said the Greater Manchester mayor is “authentic” and “what the punters need”, adding that people in his Yorkshire constituency and nationwide “don’t think Keir Starmer believes in anything”. Turner was speaking to The Rundown podcast from PoliticsHome on Thursday, before new revelations about Lord Mandelson’s appointment as UK ambassador to the US put further pressure on Starmer’s position. The Guardian reported that Mandelson was given the senior diplomatic job despite failing his security vetting. Starmer has blamed Foreign Office officials for not making him aware of the vetting failure, and last night sacked Olly Robbins as the department’s permanent secretary. Labour suspended the whip from Turner last month after weeks of …