Photo by Carl Court/Getty Images Rachel Reeves has welcomed an unexpected 0.3 per cent uptick in GDP as the first quarterly estimate dropped this morning (economists were expecting the economy to shrink). In the same breath she warned that a Labour leadership election would “put that at risk by plunging the country into chaos”. Today Westminster waits to see if Wes Streeting will launch a leadership challenge against Keir Starmer by resigning from his cabinet post as Health Secretary and attempting to gather the names of 81 MPs to get him on a ballot, which would then go to Labour party members.…