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Phil Gramm, Economist
The former economics professor and Senator from Texas is a famous fiscal hawk and a longtime McCain ally on spending cuts. Gramm is said to be front-runner for Treasury Secretary.Gramm has been an investment banker at UBS since retiring from the Senate in 2002, where he had served since 1985.

NEXT: Doug Holtz-Eakin, chief economic advisor
Last updated July 28 2008: 5:20 PM ET
The inside story of how the candidate is shaping his plan to fix the economy. (more)
He slammed big companies and free trade in the primaries, but Barack Obama insists he just wants to show corporate America some tough love. (more)