You can't help wondering if Mr Ritz' dumb tweet was final shot at his leader.  It was widely known that Mr Scheer wanted to focus on the proposed tax changes this week, but here comes Mr Ritz to distract people with a totally gratuitous insult - taken from the rebel no less - and cause needless problems for his party,

Of course Mr Scheer didn't help himself by bobbling his own response by not publicly repudiating the content of the  tweet when asked to do so, even when Mr Ritz did so himself.