Dozens of Labour MPs could defect to the Liberal Democrats, according to their leader Tim Farron.
The party was hammered at the last election & left with only eight MPs.
However, Mr Farron is trying to strike a positive note as the party gathers for its annual conference in Bournemouth.
He told Sky News' Murnaghan programme that Jeremy Corbyn's victory presents "a historic moment for us" & "the biggest opportunity for a generation" to occupy the political centre ground.
Mr Farron said: "Labour's response is to say we weren't credible enough on the economy, let's go into fantasy.
"It's time Britain has an economically credible & socially just option & that is the Liberal Democrats … Labour have chosen to go in a direction where they are probably unelectable."
He refused to name any of the Labour MPs or councillors that he claims are considering defecting, adding: "I'm not a home wrecker for the Labour Party, yet I'm a home provider for Liberals."
The party has enjoyed a surge in membership since the election with 20,000 people joining – a third of the total membership.
Mr Farron said: [The election] was a dreadful result. People felt a sense of grievance after the election so 20,000 people have joined us."
Source: “Sky News”