It is, from my perspective, less important today looking backwards as to why these militants decided they did it than to find them and bring them to justice, and then maybe we'll figure out what was going on in the meantime.

In the days ahead, I will propose more ways for more Americans to get involved in national service and give back to our communities, because every one of us has a role to play in building the future we want.

A man who can be provoked by a tweet should not have his fingers anywhere near the nuclear codes.

I have not supported same-sex marriage. I have supported civil partnerships and contractual relationships.

I believe capital gains, for the most part, should be taxed the same way we tax income from hard work, sweat, and toil. And if we do those things, we can be a country that actually can afford debt-free college again.

When we find unjustified spikes in the prices of long-standing life-saving drugs, we should slap penalties on companies trying to cheat people who need those drugs!

When you have three out of the four largest banks in America today, bigger than they were - significantly bigger than when we bailed them out because they were too big to fail, I think if Teddy Roosevelt were alive today, a good Republican by the way, what he would say is: Break them up; they are too powerful economically; they are too powerful politically.