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First Read: A defiant Sanders threatens Democratic unity

Remember when it was the Republicans who had a unity problem? Well, consider the events and actions of the last four days on the Democratic side.

Democratic presidential candidate Bernie Sanders speaks during a campaign rally at Boardwalk Hall on May 9, 2016 in Atlantic City, N.J. (Photo by Mark Makela/Getty)
Democratic presidential candidate Bernie Sanders speaks during a campaign rally at Boardwalk Hall on May 9, 2016 in Atlantic City, N.J.Getty Images

Chuck Todd

Chuck Todd is NBC News' chief political analyst and the former moderator of "Meet The Press."

Carrie Dann

Mark Murray