Chief Secretary to the Treasury Danny Alexander has said the Liberal Democrats were prevented from taking part in last night's challengers' debate on the BBC because of the Conservatives.
Speaking on ITV's The Agenda, after the debate programme, Mr Alexander insisted that his party wanted to be there "to defend our good record in government."
Mr Alexander added that Thursday night's TV debate showed that the Lib Dems were needed at Westminster to represent "the centre ground".
Other guests on The Agenda were poet Benjamin Zephaniah, journalist and broadcaster Julia Hartley-Brewer and BBC Radio4 presenter Aasmah Mir.
The Ukip leader said he did not "lose my rag" when he attacked the audience during last night's televised debate for their "left-wing bias."
We watched undecided voters as they watched the debate hoping it might help them make up their minds.
Ed Miliband appeared to turn down Nicola Sturgeon's latest offer as the leaders of five "challenger" parties took part in a heated debate.