No one could have seen this coming, right?

Democrat Elizabeth Warren has opened up a lead against Republican incumbent Scott Brown for the first time in their U.S. Senate showdown, but a barrage of attack ads appears to have damaged Warren and Brown’s standing among Massachusetts voters, a new University of Massachusetts at Lowell/Boston Herald poll shows.

Warren leads Brown by a 49-42 percent margin, outside the poll’s margin of error of plus or minus 5.3 percentage points. That number includes voters who say they are “leaning” for either candidate. But even without the “leaners,” Warren still leads by a 46-41 percent margin, barely within the margin of error.

Who is going to rally to Brown’s side?  Karl Rove’s Crossroads group is helping with negative ads against Warren, and Brown has a lot of cash to deploy against her.  But the thrill is gone.

I still wish him well, as do LI readers.

I’ll offer this advice:

Rediscover what got you elected in the first place, and don’t try to out liberal a real liberal.

Update: Even if true, I’m not sure whining about this helps, GOP Cries Sabotage of Brown’s Bipartisanship:

Sen. Scott Brown says he has been stymied this year in his effort to build a record of bipartisan legislative successes — a problem Republicans blame on Democratic efforts to sink his 2012 re-election bid.