The two Republicans running for governor of Massachusetts ramped up attacks this month on each other’s past work and credibility.

The Massachusetts senator is working to tamp down speculation he could face a challenge next year, when he will turn 80.

Scott Brown, a Republican who once represented Massachusetts in the U.S. Senate, has announced his second bid for the New Hampshire Senate being vacated by Democrat Jeanne Shaheen next year.

The two conservatives running for governor of Massachusetts ramped up attacks this month on each other’s past work and credibility, including in dueling missives that paint different pictures