Surprise: SEIU places $685,000 ad buy for Coakley

A major national union supporting Democrat Martha Coakley is taking out a massive TV ad buy that slams her Republican rival, Scott Brown, for his positions on abortion and climate change.

The ad taken out by the Service Employees International Union, will begin airing statewide tomorrow. The buy size is $685,000, one of the largest of the election.

“Before you vote for Senate, here’s a few things you should know about Scott Brown,” says a narrator in the 30-second spot. The narrator then says he “has repeatedly opposed a woman’s right to choose” and he “expresses skepticism that climate change is being caused by humans.”