Barack Obama: “Look, there's only one president at a time. I don't have the authority to take over yet.”

Please join me in supporting Sherrod Brown. He’ll always fight for Ohio.

When we choose, when we make that decision, I do believe – and there is evidence for this – that the world gets incrementally better, and that is a worthy goal and it’s worth fighting for.

This race is going to be close. It could determine which party controls the Senate and whether Ohioans can count on the people in Washington to be fighting for you.

A drift towards extremism was "not inevitable