Rooney was born in Philadelphia, Pennsylvania in 1970. He attended Syracuse University and Washington & Jefferson College where he got a Bachelor's Degree in English Literature. He also attended the University of Florida where he got a Master's Degree in Political Science. He also attended the University of Miami School of Law where he met his wife Tara Lombardi and got his Juris Doctor. He also had active service in the military from 2000 to 2004.
Rooney was elected to the U.S. House of Representatives in 2008 and 2010.