The PDP was established in 1992.[1] It won a single seat in the 2007 general elections,[2] Richard Momoima Onyonka in Kitutu Chache Constituency. In 2010 Orange Democratic Movement (ODM) MP James Omingo Magara defected to the party after the ODM did not nominate him as its candidate in the South Mugirango by-election, which was held after Magara's victory in the 2007 elections was annulled due to irregularities.[3] However, Magara was defeated in the by-election.