Parties can change leaders at any time without an election. See e.g Major taking over from Thatcher or Brown taking over from Blair.

Murdoch doesn't need his own party, since effectively he owns them all.

The only possible political game changer is a Grillo-esque none-of-the-above party built from the bottom up. But that needs a charismatic and persuasive leader, and as yet there aren't any here.

So UKIP is collecting the anti-coalition protest vote on the right, and Nu Nu Labour are picking up the traditional left-leaning voters.

UKIP's Farage - one of the chancers - has already been to see Murdoch about a possible Tory/UKIP coalition at the next election.

That's an impossibility right now, if only because the Tories look down on UKIP as peasant oiks.

But it's perhaps not so unlikely if the Tories kick out Cameron and drift further right with someone like Gove at the head.

Basically UKIP could easily take over from the LibDems, collecting the protest votes and then stabbing their supporters in the back in exchange for power.