Sign up for the MSNBC newsletter

You have been successfully added to our newsletter.

Let our news meet your inbox

The Last Word

Fmr. Sen. George Mitchell on North Korea

Nuclear experts and the White House are pushing back on North Korea's claim that it has successfully detonated its first hydrogen bomb. Fmr. Senate Majority Leader George Mitchell joins Lawrence O'Donnell to offer his take on the latest developments.

BEST OF MSNBC

Play All