[lmm]

> Then earlier this month he stepped back in as party leader of UKIP after his replacement was forced(?) out/unable to garner support?

Wasn't there some scandal around his replacement (rumours of a punch-up)? There's also the possibility that this was his plan all along.

> What I'm trying to get at is this whole Brexit triggered a huge depression in the value of the Pound. Yet the Conservatives and UKIP are still in power? Or can no one do anything until the next general elections?

Remember that the public voted for it in a referendum - the Conservative government was opposed, at least officially.