Some days ago, a backbencher from a conservative party stood up to denounce the leadership of her party in the strongest possible terms: as people who had failed their cause, traduced the politics they were supposed to represent, and failed to recognise the deep disquiet towards politicians among the general public.

The backbencher attracted no great onslaught of criticism because she wasn’t in an Australian political party. Heidi Allen is a Tory MP in the UK, and she was denouncing her own party, actually in the House of Commons. Of the deal done by PM Theresa May, with the Democratic Unionist Party -- a deal unnecessary save for leadership survival in Tory internal politics -- she said this: