By Andy Silvester The best that can be said for Rishi Sunak’s speech outside 10 Downing Street yesterday is that unlike his predecessor but two, Theresa May, the stage didn’t fall down. Standing sodden in the rain, looking every bit the wally without a brolly, he looked like a man who knew he was facing the fight of his life in his election speech – and who didn’t feel as if the gods were on his side. In truth, he had to take the plunge at some point, though perhaps he could have done so inside. There was a quite compelling working theory that the Tories were content to hang around for a while…