Coogan and Vorderman back Liberal Democrats' electoral reform pledge
Coogan and Vorderman back Liberal Democrats' electoral reform pledge
www.bbc.co.uk
Coogan and Vorderman back Liberal Democrats' electoral reform pledge
The pair say they will vote tactically to support a move to proportional representation.

Actor Steve Coogan and presenter Carol Vorderman have backed Liberal Democrat pledges to reform how the UK's general elections are run.