It's judgment day for two of the longest-serving members of Congress, both of whom are fighting for their political lives.

The contests involving Republican Sen. Thad Cochran of Mississippi and Democratic Rep. Charlie Rangel of New York - who have each served more than four decades on Capitol Hill - are the marquee matchups Tuesday as seven states from the East Coast to the Mountain West hold primaries. Full story

At 6:30pm ET, S.E. Cupp, Stephanie Cutter, Van Jones, and Newt Gingrich join forces on a special all-hosts edition of Crossfire.

Should there be term limits in Congress?

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