Billy Bragg has given Jeremy Corbyn his support on numerous occasions but now says that the Labour leader is unable to reach the parts of the electorate needed to build an effective political force

Jeremy Corbyn is a “20th Century Labour man” unable to reach the electorate, according to his previously loyal supporter Billy Bragg.

The singer said he thought that it was a transition year for Labour, warning that under Mr Corbyn it was in danger of imploding like the party had in Scotland.

Bragg, 58, who has lent his support to Mr Corbyn on numerous occasions since he became Labour leader, said that he could not understand why the party was not talking about progressive ideas, giving as an example federalism for the English regions.

Jeremy Corbyn and Bragg shared a platform at the Amnesty UK Front 'Solidarity With Refugees' demonstration last September JEFF J MITCHELL/GETTY IMAGES

“I worry about Jeremy that he’s a kind of 20th century Labour man,” Bragg told the Edinburgh Book Festival. “We need to be reaching out to people. We need to be working