Number 10 said PM would do one seven-way debate at the end of March . But Plaid Cymru will not take part in any debates during the election campaign . Broadcasters said they planned to go ahead with three debates in April .
Number 10 said PM would do one seven-way debate at the end of March . But Cameron will not take part in any debates during the election campaign . Broadcasters said they planned to go ahead with three debates in April .