BOSTON GLOBE: McGrory: Where’s Martha Coakley? “If you’re a registered voter in Massachusetts, your friendly Democratic Senate candidate, Martha Coakley, is sticking her thumb in your eye. Coakley, in exquisitely diva-like form, is refusing all invitations to debate her Republican opponent in the race, Scott Brown, unless a third-party candidate with no apparent credentials is included on the stage. She may also require a crystal bowl of orange-only M&Ms in her dressing room, but we haven’t gotten that far yet.”