Career
Pidgeon was previously a councillor in Southwark from 1998 until 2010 where she became Cabinet Member for children and young people and was deputy leader of the council. She also stood in the Lambeth and Southwark constituency, where she came second to Valerie Shawcross (Labour). Pidgeon served as Chair of the London Assembly"s Transport Committee in 2009-2010, having previously served as vice-chair during 2008-2009.
In April 2009 she launched the One hour bus ticket campaign, a scheme which would allow Londoners to travel for up to an hour on a single bus ticket.
She was the Liberal Democrat candidate for the Vauxhall parliamentary constituency in the 2010 General Election. In 2015 she declared her intention to seek the Liberal Democrat nomination for the 2016 Mayor of London election as well as putting herself forward for the Liberal Democrat Assembly list as well as many other candidates including Rob Blackie, Emily Davey and fellow incumbent Steven Knight.
She was selected as the mayoral candidate and first on the list of Assembly candidates.