The Conservatives are gaining momentum ahead of next week's General Election.
The party is now five points in the lead with 35 per cent support, compared to 30 per cent for opposition party Labour, according to the latest pre-election poll published by Ipsos MORI,
With less than seven days to go, competition is intensifying between the two parties. They have been neck-and-neck in most polls since the start of the year, but recently things have tipped more in the Conservatives' direction, with seven of the 10 main pollsters giving Cameron a lead based on their most recent surveys.
The outcome of this election has been unusually difficult for anyone to predict, partly because many voters are now choosing to support once marginal parties, such as the SNP and Ukip, instead of the two big parties.
"In Scotland Labour will pile up votes in second place in an awful lot of seats but win almost no seats, so their vote nationally will become much less efficient than it has been," Philip Cowley, professor of parliamentary government at the University of Nottingham, told Reuters.
Despite the Conservative party's current lead, it is still difficult to make a definite prediction, according to the head of political research at Ipsos Mori. This is because of the UK's first-past-the-post voting system, which makes it harder for the Conservatives to win.
Labour could take charge with a lead of between 3.5 and 5.5 points, whereas the Conservatives would need between 8.5 and 10.