 Since 2003, Tsarukyan has been a RA National Assembly deputy.On May 25, 2003 he was elected as a deputy in the National Assembly of Armenia from District 42 after running unopposed, later becoming a member of the National Assembly's Standing Committee on Defense, National Security and Internal Affairs; he was not a member of a parliamentary faction during this term.In late 2005 he founded the Prosperous Armenia Party.