Whether or not he runs for Senate again, outgoing Sen. Scott Brown (R-Mass.) is not afraid to engage in a little trash talk. In a radio interview Wednesday morning, he suggested that he would be happy to run against Rep. Ed Markey, the first major Democratic candidate in the race to replace Sen. John Kerry (D). 

"They’re making it awfully tempting," Brown told WTKK-FM. "You got Ed Markey: Does he even live here any more?” When traveling between Washington and Boston, Brown said, "I have never seen Ed on the airplane."

The veteran House Democrat owns both his childhood home in Malden, Mass., and a house in Chevy Chase, Md.  

Assuming Kerry's nomination as secretary of state is confirmed by the Senate, an interim senator will be appointed by Gov. Deval Patrick (D) and a special election held sometime this year. Markey announced his intention to run for the seat last week, and the Democratic establishment quickly coalesced behind him.

Brown, who lost his Senate seat this fall to Democrat Elizabeth Warren, is widely considered to be the likely Republican candidate.