The Boston Globe reports on mounting conservative disaffection with onetime Tea Party favorite Sen. Scott Brown (R-MA):

“I think that there will be a primary challenge,” said Christen Varley, president of the Greater Boston Tea Party. “There’s enough of an underground movement in the Tea Party movement as seeing him as not being conservative enough. There probably will be multiple people who attempt to run against him.”

Varley said it is too early to name a possible opponent, and she acknowledged that Brown’s campaign war chest and statewide organization would probably be enough to fend off an opponent. But if Brown has to devote energy and resources to a primary campaign, it could put him at a greater disadvantage in a general election in which Democrats will be fighting hard to reclaim a seat they consider theirs.

I’ve written about this before. Nevertheless, Brown has several factors cutting in his favor: a $6.8 million warchest, a track record of winning elections, a statewide organization, a dearth of conservative leadership in Massachusetts from which to draw a viable primary challenger, and — perhaps most importantly — almost two years with a more Republican Congress to get right with his base.