“I think one of the reasons we’re tied in the polls is because Sherrod Brown is running negative campaign about pessimism and division and trying to tear me down, while we’re running a positive energetic campaign about change in Washington.  And I think voters are pretty tired of hearing Sherrod Brown whine about this and that. I think it's time for Sherrod Brown to put his big boy pants on. If he wants to run for Senate, he should stop whining and tell people what he stands for.”

The latest results from Public Policy Polling today show Brown with an eight-point edge over Mandel. But other polls show the race is within less than a single percentage point.

Brown’s campaign has raised about $4 million more than Mandel’s. And outside groups backing Brown have spent another roughly $4 million on ads targeting Mandel.