From CNN's Mark Preston

WASHINGTON (CNN) -- Sen. John McCain announced today that the sons of two legendary South Carolina lawmakers will co-chair his Straight Talk America political action committee in the Palmetto State. The Arizona Republican, who has acknowledged interest in running for the GOP presidential nomination in 2008, also added two former New Hampshire Republican party chairmen to his PAC's team.

McCain said that Strom Thurmond, Jr. and Carroll A. Campbell III will help lead his PAC's political efforts in South Carolina. Thurmond is the son of the late Republican Sen. Strom Thurmond, while Campbell is the oldest son of the late Gov. Carroll Campbell.

McCain also named former New Hamphire GOP chairwomen Rhona Charbonneau and Jayne Millerick as advisors to his PAC. Another former Granite State GOP chairman, Steve Duprey, joined the PAC earlier this year.