Hardball with Chris Matthews 12/29/15

Rubio vs. Bush in latest GOP showdown

The Republican establishment candidates are going after each other. Today’s example? The pro-Jeb Bush super pac is slamming Marco Rubio for not showing up to his Senate job. Of course, Rubio’s camp has something to say about that. Sabrina Siddiqui, Michael Tomasky and Ginger Gibson make up the Hardball Roundtable. ... more Duration: {{video.duration.momentjs}}