Guest lineups for the Sunday TV news shows:
ABC's "This Week" — President Donald Trump's national security adviser, H.R. McMaster; Reps. Jason Chaffetz, R-Utah, and Elijah Cummings, D-Md.; Sen. Ben Sasse, R-Neb.
NBC's "Meet the Press" — To be announced.
CBS' "Face the Nation" — Sens. Dianne Feinstein, D-Calif., and Marco Rubio, R-Fla.
CNN's "State of the Union" — Sen. Bob Corker, R-Tenn.