Housebuilding has “collapsed” under the Conservative government with the prime minister “crumbling” to backbenchers, Labour leader Keir Starmer told Rishi Sunak yesterday (June 28). At the latest Prime Minister’s Questions, Starmer and the PM clashed on their approaches to housebuilding. The Labour leader accused his opposite of a contradictory stance: “One minute he says he’s for building new houses; the …