Boston is a tough and resilient town. So are its people. I'm supremely confident that Bostonians will pull together, take care of each other, and move forward as one proud city. And as they do, the American people will be with them every single step of the way.

The War on Drugs has been an utter failure. We need to rethink and decriminalize our marijuana laws.

Faith doesn't mean that you don't have doubts.

The alternative, no limits on Iran's nuclear program, no inspections, an Iran that's closer to a nuclear weapon, the risk of regional nuclear arms race, and the greater risk of war - all that would endanger our [American] security.

The only people who don't want to disclose the truth are the people with something to hide.

We've seen those results in generations of Muslim immigrants - farmers and factory workers, helping to lay the railroads and build our cities, the Muslim innovators who helped build some of our highest skyscrapers and who helped unlock the secrets of our universe.

[Michelle Obama] used to say to our friends, "Barack's exactly the kind of guy I want to be president. I just wish he didn't want to do it when I was married to him."