Is David Cameron a Democrat in disguise?

In an interview with the Sunday Times's Style magazine , actress Helena Bonham Carter claimed that her friend David Cameron was "not a rightwing person. If he was in America, he'd be a Democrat". Are there any other British politicians you could see thriving outside the straitjacket of British party politics? Could Nick Clegg revive Germany's free-market FDP? Would George Galloway have a chance of running for France's Socialist party? And likewise, which politicians from abroad would be a good match for parties in British politics? • Follow Comment is free on Twitter @commentisfree