One of the newest episodes of the revived TV show Spitting Image , a stalwart of 1990s political commentary, made a parody of Home Alone . Instead of Kevin, it was Keir  being left in Downing Street all by himself. The goons were replaced by Nigel Farage trying to break in. To be fair, he might have been coming to take a look at his next gaff.  The episode asked a powerful question. How is it that a Prime Minister, elected with a landslide, is now a mockery, polling as the mo