Sir Nicholas William Peter Clegg is a British media executive and former politician who served as Deputy Prime Minister of the United Kingdom from 2010 to 2015 and as Leader of the Liberal Democrats from 2007 to 2015. He was Member of Parliament (MP) for Sheffield Hallam from 2005 to 2017. An "Orange Book" liberal, he has been associated with both socially liberal and economically liberal policies. In 2018, Clegg became vice‑president of global affairs and communications at Facebook, Inc., before being promoted in 2022 to president for global affairs.

Walter Menzies Campbell, Baron Campbell of Pittenweem,, often known as Ming Campbell, is a Scottish Liberal Democrat politician, advocate and former athlete. He was the Member of Parliament (MP) for North East Fife from 1987 to 2015 and was the Leader of the Liberal Democrats from 2 March 2006 until 15 October 2007.