Scott Brown, probably the most vulnerable incumbent Republican senator, is going to have a real fight on his hands in Massachusetts. Democrat Elizabeth Warren raised $5.7 million to Brown’s $3.2 million in the fourth quarter, marking the second quarter in wich Warren outraised Brown.
Warren, a liberal darling, does have less cash on hand than Brrown’s $12. 8 million. Brown, who holds the Senate seat that once belonged to Ted Kennedy, will kick off his reelection bid tomorrow, two years after beating Martha Coakley in a special election.