Juliette Kayyem: “I think the point here is the motive really does not matter right now. It was clearly a terror act.”

The big lie is direct -- directly motivates violence, because in the white supremacist viewpoint, and in these radicalized groups viewpoints, when something is stolen, they can rightfully use violence to get it back.

The Secret Service and the Department of Homeland Security do not owe Donald Trump anything anymore.

There has to be just a basic duty to intervene.

What we need to do is police and target our resources so that we stop people from entering illegally or if they present themselves at a border crossing, ensure they never make it in if they are in fact a terror threat.