Is the election a three horse race?
The political parties are battling over who offers "change" as polls suggest a continuing Lib Dem surge. Is the election now wide open?
David Cameron has reacted to the latest opinion polls by warning a vote for Nick Clegg could see the country being "stuck" with Labour and said only his party could offer "decisive change".
Lib Dem leader Nick Clegg said only his party "stands up for real change in the old economic and political order".
Labour's Gordon Brown told BBC Radio 1's Newsbeat: "I'm here to be a vehicle of change for our community".
Do you think increased popularity of the Liberal Democrats will continue? Is this a result of Nick Clegg's performance on the first TV debate?
This debate has now been closed. Thank you for your comments.