David Cameron has refused to directly answer a question over whether the Conservatives would go into coalition with Ukip, but said last night's debate presented him and his party as alone in offering a "clear plan" for the economy.
On the election trail in Greater Manchester, Cameron said all the other parties presented a vision of "chaos".
"I thought last night the biggest impression was a choice - you stick with that clear leadership, that clear plan, or you put it all at risk with a sort of 'coalition of chaos' that want extra debt and extra taxes."
Last night there wasn't one particular knockout blow but the political landscape in Britain does seem to be shifting.
Another day on the election trail and the campaign catchphrase is starting to bite.
Leaders' Debate shows was how our political horizon has suddenly changed as smaller parties did all they could to make themselves heard.