Gordon Brown insisted he was in a "fight to the finish" as he rounded off a 10-stop whirlwind of campaign visits across London.
The Prime Minister maintained that people were beginning to see the choices facing them in Thursday's poll - as he rounded on the press for concentrating on "froth".
His comments came at the end of a hyperactive day of campaigning around the capital.
Moments later, he had to be sneaked out of a pub the back way after it was besieged by jostling Liberal Democrat activists.
Speaking to reporters in an upstairs room of the North London Tavern in Kilburn, Mr Brown said: "We are not only taking this fight to the opposition but meeting lots of people and getting our message across, and people now know this is a fight to the finish.
"We are not going to stop until the election is over and we are getting our message across that there is a real choice here, a real choice that's got to be made."
But the Prime Minister gave vent to his growing frustration with the media's coverage of the election.
"What did John F Kennedy say about the papers? He was reading them more and enjoying them less," he said.
Challenged that most of his stops were focused around Labour supporters rather than ordinary members of the public, he said: "Don't do that, it's not fair.
"Why don't you cover the policies of the campaign. You are only interested in the froth. Get interested in the policies ... You have got to know that this election is about policy."
