Prime Minister David Cameron said, "There are lessons for all parties today" after UKIP made significant gains at the local elections:
There are lessons for all parties today. For the Conservatives-we need to focus even more on the economy, welfare & controlling immigration
UKIP leader Nigel Farage claimed a "sea change" in British politics as they gained more than 140 council seats in the local elections.
There is no question that the day belongs to UKIP and Nigel Farage. The party has gained over 100 seats and won about a quarter of the vote.
In an article for ITV News, the Conservative MP Adam Afriyie calls for a guarantee on an in-out EU referendum to deal with the UKIP threat.