Liberal Democrat Ed Davey has described the party as being “back in business” after they gained over 300 council seats in the local elections.
The results are expected to continue to come in throughout Friday, with 133 councils yet to declare.
Mr Davey, who is the party’s Home Affairs spokesman, told talkRADIO’s Julia Hartley-Brewer: “These are our best results in a generation.
“We are winning against Labour in the north and the Conservatives in the south.
“We are taking council seats that we never expected to take. This shows that the Liberal Democrats are back in business.”
Mr Davey said the local election results could signal “a sea change in British politics”.
“I think people are desperate for an alternative from the completely incompetent Conservative opposition and hopelessly divided opposition,” he added.
“Now they have a very strong Liberal Democrat alternative.”
The Liberal Democrat MP described the two main parties as “a mess”.
“The two main parties have shown utter failure,” he added.
However Labour and the Conservatives are not the only parties to lose seats with UKIP having already lost over 50 seats.
But party spokesman Stuart Agnew said there had been “a huge mountain to climb” after the party’s previous success in local elections.
He told talkRADIO’s Julia Hartley-Brewer that UKIP had won some “brand new seats” despite the overall loss.
Mr Agnew added that the elections had also been an opportunity to fight against the “political system”.
“We have seen independent candidates doing very well and waving two fingers at the whole political system,” he said. “I can’t blame them.”