U.S. Sen. Rob Portman, R-Ohio, is retiring from the Senate at the end of this year.

Portman of Cincinnati was elected in 2010, replacing George Voinovich. He previously served as President George W. Bush’s director of the Office of Management and Budget and U.S. Trade Representative.

ExploreRetiring Sen. Rob Portman touts the importance of bipartisan cooperation

Portman was a member of the U.S. House of Representatives from 1993 to 2005, and prior to that served as White House director of legislative affairs for President George H.W. Bush.

Portman and two siblings own the Golden Lamb restaurant in Lebanon.

Republican J.D. Vance of Cincinnati won election in November to Portman’s seat, beating U.S. Rep. Tim Ryan, D-Howland Twp.

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