I know that campaigns can seem small, and even silly. Trivial things become big distractions. Serious issues become sound bites. And the truth gets buried under an avalanche of money and advertising. If you're sick of hearing me approve this message, believe me - so am I.

For me, Lincoln is like just a handful of people - a Gandhi, or a Picasso, or a Martin Luther King Jr. - who is an original and captures something essential.

No other advanced nation endures this kind of violence. None. Here in America, the murder rate is three times what it is in other developed nations. The murder rate with guns is ten times what it is in other developed nations. And there's nothing inevitable about it. It comes about because of decisions we make or fail to make. And it falls upon us to make it different.

The other reason might be that you want to talk to voters when you've got seven primaries in seven days. Understand what's happened in this race - where we campaign actively in a state, and voters have the chance to see me directly, they check under the hood, and they kick the tires, when we don't have as much time.

I think the Turks' willingness to take seriously action on the borders to stop the flow of foreign fighters joining ISIL is significant.

Even when folks are hitting you over the head, you can't stop marching. Even when they're turning the hoses on you, you can't stop.

To the Muslim world, we seek a new way forward, based on mutual interest and mutual respect. To those leaders around the globe who seek to sow conflict, or blame their society's ills on the West - know that your people will judge you on what you can build, not what you destroy. To those who cling to power through corruption and deceit and the silencing of dissent, know that you are on the wrong side of history; but that we will extend a hand if you are willing to unclench your fist.