Campaign van outside Houses of Parliament
Media playback is unsupported on your device
Video

General election campaigning begins

It is only the second day of the new year but already the starting gun has already been fired in the campaign to woo voters ahead of the general election.

David Cameron unveiled the first of what will be many posters, saying that May's election will be the most important in a generation.

Meanwhile Ed Balls has dismissed concerns that Labour has shifted to the left, insisting it is the Tories who have moved to the right, abandoning the political centre ground.

Chris Mason reports.

Go to next video: General election campaigning begins