Ed Miliband branded David Cameron's excuses not to engage in TV debates before the General Election as "feeble and pathetic".
There has also been a suggestion of a five-way leader online debate to solve Cameron and Miliband's "stalemate" position.
ITV News Political Correspondent Romilly Weeks reports.
David Cameron has damaged his reputation by trying to avoid TV debates with other leaders, according to a new ComRes poll for ITV News.
Ed Miliband say a Labour government would take legal steps to make sure leaders' debates a permanent feature in general election campaigns
Former Conservative Party chairman suggests a Tory-Labour grand coalition to stop the SNP holding the balance of power at Westminster.