Before joining AEI, Mr. Hassett was a senior economist at the Board of Governors of the Federal Reserve System and an associate professor of economics and finance at the Graduate School of Business of Columbia University, as well as a policy consultant to the Treasury Department during the George H. W. Bush and Clinton administrations. He served as an economic adviser to the George W. Bush 2004 presidential campaign and as Senator John McCain's chief economic adviser during the 2000 presidential primaries. He also served as a senior economic adviser to the McCain 2008 presidential campaign. Mr. Hassett is a columnist for National Review.