President Obama stars in a new ad for attorney general Martha Coakley (D), who is trailing in the polls before tomorrow's special election for the U.S. Senate in Massachusetts.
After inundating voters in recent days with negative ads, Coakley's Obama spot is positive and features the president saying that she's a fighter. There's no mention of her rival, state Sen. Scott Brown (R)
"We need you on Tuesday," Obama said.
Watch the ad after the jump.