Brexit isn't a foregone conclusion. There are three main scenarios that could keep Britain in the EU.

The flayed corpses of Prime Minister David Cameron and the Conservatives are a disincentive for future British governments to offer referendums, the most direct form of democracy.

The Remain campaign will not win on June 23 unless it can mobilize Labour voters, but outside of London and Wales the party lacks the capacity to perform this crucial role.

On May 7, British voters will go to the polls in the most unpredictable general election for decades.

The dilemma for Britain's political leaders is how to build on the public engagement generated by Scotland's referendum without rushing into ill-conceived reforms that create more problems than they solve.

UKIP's gains in local and European elections were not a political mega-quake but rather the result of public anger with established parties the past decade over economic austerity, the Iraq war and the MPs' expenses scandal.