With the 5-to-4 decision upholding Trump's Muslim ban, arbitrary discrimination is now formal U.S. policy, celebrated by a president who campaigned on a 'total ban' of Muslims entering the United States.

Billions of people around the globe had come to know Barack Obama, had heard his words, had watched his speeches, and, in some unknowable but irreducible way, had come to see the world as a place that could - in some incremental way - change.

After the separation of children from families seeking to join the United States was embraced as the official policy of our government, we should ask ourselves what story we will tell. President Trump's story is one of cruelty - that we may do something unfathomable to deter families from coming to America.

It was wrenching to read about the brutality of Assad every morning, to see images of family homes reduced to rubble. I felt we had to do something in Syria.

We've supported the development of Cuba's private sector. This is a human rights issue - people should have the right to live with dignity and to control their livelihoods.