While some welcomed her effective sacking as ruthless leadership, others have denounced it as panicked and disloyal.
Voters who feel betrayed by the modern world do not want tinkering at the edges of the status quo.
Mark Reckless becomes the second ever elected Ukip MP.
A new poll shows 26 per cent would vote for a Green candidate capable of winning, compared to 24 per cent for Ukip.
Polls have now opened in the constituency where immigration dominates debate, and Ukip is poised to seize power from the Tories.
Losses to Ukip mean the party has failed to gain any ground since 2010.
A fundamental economic tension runs through Ukip.
Eric Kaufmann, Professor of Politics at Birkbeck College, pens a letter to the White British majority.
The Ukip leader on coalitions, immigration fears and why he’s chasing the Labour vote.
The Tory-turned-Ukip defector talks by-election tactics, potential future defections, and how he'd prefer sitting with Ukip MPs in Westminster than Holocaust-deniers in the European Parliament.