Republican state Senator Scott Brown announced September 12 that he will seek Kennedy's seat.
Brown was first elected to the Massachusetts State Senate in 2004. He previously served in the Massachusetts House of Representatives from the Ninth Norfolk District.
Strengths: Brown is a frequent guest on local political radio and television shows, often appearing as an outspoken representative of the local Republican Party. Brown also has a high-profile family. His wife is WCVB-TV reporter Gail Huff, and his daughter, Ayla, is a former contestant on "American Idol."
Weaknesses: Republican strength has steadily shrunk in the Massachusetts House and Senate in recent years. Brown's level of statewide support is unclear.