We may never understand what leads anybody to terrorize their fellow human beings. Such violence, such evil is senseless. It's beyond reason.

The ability of Republican leaders to rile up their base - helped along by folks like Rush Limbaugh, some commentators on Fox News - I think created an environment in which Republican voters would punish Republicans for cooperating with me. That hothouse of back-and-forth argument and - and really sharp partisanship I think has been harmful to America.

A political consultant, when we first started thinking about Senate race, said, "You can have one funny name. You can be 'Barack Smith.' Or you can be 'Joe Obama.' But 'Barack Obama' - that's not gonna work."

I want to control our own energy by developing oil and natural gas but also the energy sources of the future.

What makes America exceptional are the bonds that hold together the most diverse nation on earth.

We can rattle our sabers all we want but, realistically, we don't have troops for an invasion [Iran] and surgical strikes aren't going to work.

If you run you stand a chance of losing, but if you don't run you've already lost.