FDP.The Liberals (German: FDP. Die Liberalen, French: PLR. Les Libéraux-Radicaux, Italian: PLR. I Liberali, Romansh: PLD. Ils Liberals) is a liberal political party in Switzerland. It is the joint-largest party in the Federal Council, third-largest party in the National Council, and second-largest in the Council of States.The party was formed on 1 January 2009, after two parties, the Free Democratic Party (FDP) and the smaller Liberal Party, united.