Arch, conservative, preppie guy Tucker Carlson has been ousted from his MSNBC show. Carlson's one-hour talk show, called Tucker, has been canceled. NBC News correspondent David Gregory will take over the hour slot, 6 p.m. Monday through Friday, which will be called Race for the White House. This week will be Carlson's last. Gregory starts on Monday, March 17.

MSNBC is reportedly making a series of changes, amping up the political chatter. Considering how much politicking is going on now, including Tucker, it's hard to fathom how switching Carlson for Gregory is going to increase the discourse.