Source-Verified Record

Official Biography

Verified July 31, 2026

BILL FOSTER, Democrat, of Naperville, IL; born in Madison, WI, October 7, 1955; education: B.S., physics, University of Wisconsin-Madison, Madison, WI, 1976; Ph.D., physics, Harvard University, Cambridge, MA, 1983; professional history: small business owner, Electronic Theatre Controls Inc., 1975-2007; physicist, Irvine-Michigan-Brookhaven Detector, 1979-84; physicist, Fermi National Accelerator Laboratory, 1984-2006; election history: elected to the 14th District for the 110th Congress, by special election, to fill the vacancy caused by the resignation of U.S. Representative John Dennis Hastert; reelected to each succeeding Congress; elected to the 11th District for the 113th Congress on November 6, 2012; reelected to each succeeding Congress.

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