Sunday shows: Crist vs. Rubio, Rendell, Schumer
ABC's "This Week" with Jake Tapper: Obama advisor Valerie Jarrett; Govs. Ed Rendell (D-Pa.) and Haley Barbour (R-Miss.), George Will, Donna Brazile and Peggy Noonan.
CBS' "Face the Nation" with Bob Schieffer: Sen. Jim DeMint (R-S.C.), Rep. Michele Bachmann (R-Minn.), Tim Kaine, chairman of the Democratic National Committee.
CNN's "GPS" with Fareed Zakaria: Mexican President Felipe Calderon.
CNN's "State of the Union" with Candy Crowley: Obama advisor David Axelrod; Sens. Lamar Alexander (R-Tenn.) and Barbara Mikulski (D-Md.).
"Fox News Sunday" with Chris Wallace: Exclusive senatorial primary debate between Gov. Charlie Crist (R-Fla.) and former Speaker of the House Marco Rubio with guests Brit Hume, Mara Liasson, Bill Kristol and Juan Williams.
NBC's "Meet the Press" with David Gregory: Sens. Lindsey Graham (R-S.C.); Chuck Schumer (D-N.Y.); Doris Kearns Goodwin, Jon Meacham, Mike Murphy and Bob Shrum.
-- Andrew Malcolm
Photos: Associated Press (Crist and Rubio).