Vicki Young
Media playback is unsupported on your device
Video

Election 2015: One minute campaign update: Thursday

The stage is set for the only live, televised leaders' debate of the 2015 general election. Will there be a gaffe or a bust- up, or a phrase that catches voters' imagination?

The BBC's chief political correspondent Vicki Young looks ahead to the set-piece TV event.

Go to next video: One minute campaign update: Wednesday