In a recent survey of Millennials around the world asking what most defines our identity, the most popular wasn't nationality, ethnicity or religion. It was "citizen of the world." That's a big deal. Every generation expands the circle of people we consider one of us. And in our generation, that now includes the whole world. This is the struggle of our time. The forces of freedom, openness, and global community against the forces of authoritarianism, isolationism, and nationalism - forces for the flow of knowledge, trade, and immigration, against those who would slow them down.

The path forward is to bring people together, not push them apart. I hear fearful voices calling for building walls and distancing people they label as 'others'. I hear them calling for blocking free expression, for slowing immigration, for reducing trade, and in some cases even for cutting access to the internet.

The people of Arizona, the people of Atlanta, Georgia, you should be ashamed of yourselves.

I only want to admit individuals into our country who will support our values and love our people. Anyone who endorses violence, hatred or oppression is not welcome in our country and never will be.

I'd like Egypt to take people [from Gaza]. You're talking about probably a million and a half people, and we just clean out that whole thing and say, 'You know, it's over.'

Why are we having all these people from shithole countries come here?