Ken may not like voting in the dark - although seems happy to govern there - but Lib Dem president Simon Hughes has raised the inevitable question of whether or not we should have fixed term parliaments. Much of the current speculation is because of the prime minister's constitutional power to request an election whenever he or she wants - a power usually abused by PM's to ensure they hold elections when the polls are most favourable. Fixed terms sound a good idea, but do they really fit with our notion of parliamentary government? And, as George Osborne pointed out on Newsnight tonight, what happens when you have an inconclusive result? A fixed term then would mean five years of minority government.