When the news broke on Sunday morning that Boris Johnson and Rishi Sunak planned to skip self-isolation — availing themselves of a loophole — the reaction was as much disbelief as fury. Could the Prime Minister and Chancellor, even for a second, think it right to excuse themselves from the Test and Trace regime that they have imposed on millions? They changed their minds (after just a few hours) but it raised wider concerns in the party: what on earth were they thinking? And is this typical of the quality of decision-making we can expect ahead of a tricky few...