I promise just to serve two terms. Republicans do it differently. They just have the son repeat the father's whole first term.

I met with many of - a number of [Syrian] refugees in Berlin the other day, and I was struck by how educated, intelligent, and patriotic they are. They want to go back. They love their country. And there are so many of them still in Jordan and in refugee camps in Lebanon and in Turkey, that if you could create the climate within which they could begin to come back, I believe there is such a history of secularism within Syria, even tolerance within Syria, that if we can deal with ISIL, yes. That's the key. And with ISIL there, not a chance.

Palestinians need to stop the incitement. They need to stop that kind of activity. But at the same time, there is a need to see the broader conflict here and understand that there has to be some kind of ultimately negotiated political track that's going to resolve the difference between Palestinians and Israelis.

Republican secretaries of state from Kissinger to Baker, Powell to Rice, President Bush, 71 United States Senators all supported President Obama's new START treaty, but not Mitt Romney.

There should be a Transatlantic renaissance between the US and Europe based on shared prosperity, security, and values.

We can't change minds without knowing what's in them.

If the threat is jihadism - and it is - and the threat is the destruction of Syria so that all of these refugees are swamping into Europe and changing the whole character and politics of Europe, this is the time to unite to find a way out.