 She launched her campaign with a focus on housing, calling for a "people's land bank" which would let communities bring empty buildings and land back into use.Siobhan Benita was selected as the Liberal Democrat candidate on 21 November 2018.Benita had run as an independent candidate in the 2012 London mayoral election, coming fifth with 3.8% of first preference votes, behind fourth-placed Liberal Democrat candidate Brian Paddick, who received 4.2%.