Joanne Kate Swinson is a former British politician who was Leader of the Liberal Democrats from July to December 2019. She was the first woman and the youngest person to hold the position, as well as the shortest-serving holder of the post. Swinson failed to be elected as an MP whilst leader of the Liberal Democrats. Swinson was Member of Parliament (MP) for East Dunbartonshire from 2005 to 2015 and 2017 to 2019. In September 2020, Swinson became Director of Partners for a New Economy (P4NE).