Sign up for the MSNBC newsletter

You have been successfully added to our newsletter.

Let our news meet your inbox

The SCOTUS case testing Trump's national security powers

The Trump Administration will be closely watching a Supreme Court case that may be a test U.S.-Mexico relations, as well as Trump's national security power. MSNBC's Ari Melber discusses with immigration lawyer David Leopold and political commentator Ana Marie Cox.

BEST OF MSNBC

Play All