During the 2004 United States presidential election, Nemazee was a supporter of John Kerry and a major contributor to his campaign.
[5] With Nemazee as the national finance chair, Chuck Schumer's DSCC in 2006 raised $115 million, outpacing the NRSC by substantial sums, and helping the Democratic Party take control of the Senate.
[7] Due to Congressional concerns about Nemazee's convoluted and controversial business dealings, the nomination was subsequently withdrawn[8] More recently, Nemazee served as Finance Chairman to Hillary Clinton's 2007-08 presidential campaign, and also donated $50,000 (the maximum amount) to Barack Obama's Presidential Inaugural Committee.
[10] Hassan Nemazee was arrested on August 25, 2009, for allegedly defrauding Citi bank by using false documents to secure a loan.
[13] In August 2024 Hassan Nemazee published "Persia, Politics & Prison: A Life In Three Parts," his autobiographical account of his life in Iran before the Islamic Revolution, his time in the United States as a political fundraiser, and his fall and time in prison for the crime of bank fraud.