By launching his leadership campaign with an unequivocal pitch for Britain to rejoin the European Union, the former health secretary has stopped the ‘Andy Burnham for PM’ juggernaut in its tracks – but is that any way to make a bid to run the country, asks Sean O'Grady W hat is Wes up to…? This is a question that we’ll probably be asking ourselves a good deal in the coming weeks – and by “us”, I mean Streeting’s comrades in the Labour Party . Those close to the man we may soon be calling the