ABC: “This Week”

9 a.m. Sens. Charles Schumer, D-N.Y., and John Ensign, R-Nev.; presidential candidate and former Arkansas Gov. Mike Huckabee.

NBC: “Meet the Press”

9 a.m. Democratic strategists James Carville and Bob Shrum; Republican strategists Mary Matalin and Mike Murphy.

Fox: “News Sunday”

9 a.m. Sens. Patrick Leahy, D-Vt., and Arlen Specter, R-Pa.; Ed Gillespie, White House counselor and former RNC chairman.

CBS: “Face the Nation”

10:30 a.m. Sens. Joe Biden, D-Del., and Lindsey Graham, R-S.C.

CNN: “Late Edition”

11 a.m. Sen. Richard Shelby, R-Ala.; Rep. Kendrick Meek, D-Fla.; Laith Kubba, former Iraqi government spokesman; Lanny Davis, former special counsel to President Clinton; Ben Ginsberg, former counsel to the Republican National Committee.