 On February 9, 2017, Calabria was selected by Vice President Mike Pence to serve as his chief economist.Before that, Calabria was the Director of Financial Regulation Studies at the Cato Institute; a member of the senior staff of the U.S. Senate Committee on Banking, Housing and Urban Affairs, where he handled issues related to housing, mortgage finance, economics, banking and insurance for Ranking Member Richard Shelby; a staffer on the Senate Banking Committee under Chairman Phil Gramm; and a Deputy Assistant Secretary for Regulatory Affairs at the U.S. Department of Housing and Urban Development.He also held a variety of positions at Harvard University's Joint Center for Housing Studies, the National Association of Home Builders, the National Association of Realtors and the U.S. Census Bureau's Center for Economic Studies.