LABOUR lurched a step closer to a leadership contest today as Wes Streeting finally resigned from the Cabinet with a coruscating attack on Keir Starmer’s leadership.He slammed Sir Keir’s lack of vision and leadership, called out a number of his missteps and largely blamed him for last week’s disastrous election results for Labour across the country.However, the outgoing Health Secretary stopped short of announcing an immediate challenge to the premier, most likely because he presently lacks the support of the 81 Labour MPs required.