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(NECN) - Mass. Senator John Kerry has yet to be confirmed as the next Secretary of State, but the race to replace him continues to heat up.
Ousted Republican Senator Scott Brown is one potential candidate, and while he has not said whether he will run for Kerry's seat in a special election, he's already taking a shot at a potential Democratic rival, Congressman Ed Markey.
Brown called in to 96.9 WTKK earlier Wednesday, and in so doing questioned Markey's residency in Massachusetts.
"I've come back and forth every weekend almost for three years, and I see most of the delegation. I have never seen Ed on the airplane, ever," he said.
Markey's campaign has already responded with a statement saying the Congressman has lived his entire life in Malden.
A spokeswoman went on to say "Scott Brown has not yet announced he is running for Senate, but he is already launching false, personal attacks from the sidelines."
The mayor of Malden is also vouching for Markey, saying the Congressman is frequently spotted around the city.