Lobbyist influence comes from access, not money.

I think that at a certain stage those early ambitions burn away, partly because you achieve something, you get something done, you get some notoriety. And then the particularities of who you are and what your deepest commitments are begin expressing themselves. You're not just chasing the idea of "me" being important, but you, rather, are chasing a particular passion.

Several Americans, unjustly detained by Iran, are finally coming home. In some cases, these Americans faced years of continued detention, and I've met with some of their families. I've seen their anguish, how they ache for their sons and husbands. I gave these families my word. I made a vow that we would do everything in our power to win the release of their loved ones, and we have been tireless.

Iran will for sure have pledged to the international community that it will not develop a nuclear weapon, and now will be subject to an additional protocol, a more vigorous inspection and monitoring regime that lasts in perpetuity.

We should never hesitate to use military force, and I will not, as president, in order to keep the American people safe. But we have to use our military wisely. And we did not use our military wisely in Iraq.

Healthcare system is broken without lifetime employment.

Part of what's changed in politics is social media and how people are receiving information.