London mayoral candidate profile: Liberal Democrats

Four years ago the Lib Dems only managed to come fourth in the mayoral contest.

Twelve months ago they were all but wiped out as a party both in London, and nationally at the General Election.

But their leader, Tim Farron says his candidate in the election next week can break through the bitterness and negativity between the two leading contenders.

Caroline Pidgen is that candidate. She spoke to our Political Correspondent Simon Harris.