Judd Alan Gregg is an American politician and attorney who served as the 76th governor of New Hampshire from 1989 to 1993 and a United States senator from New Hampshire from 1993 to 2011 where he was Chairman of the Health Committee and the Budget Committee. A member of the Republican Party, he was a businessman and attorney in Nashua before entering politics. Gregg currently serves as the Chair of the Public Advisory Board at the New Hampshire Institute of Politics at Saint Anselm College.

The 2010 United States Senate elections were held on November 2, 2010, from among the United States Senate's 100 seats. A special election was held on January 19, 2010, for a mid-term vacancy in Massachusetts. Thirty-four of the November elections were for six-year terms to the Senate's Class 3, while other three were special elections to finish incomplete terms. Those 37 November elections featured 19 incumbent Democrats and 18 incumbent Republicans.