Guest lineups for the Sunday TV news shows:
ABC's "This Week" — Samantha Power, U.S. ambassador to the United Nations; Gov. Deval Patrick, D-Mass.; Sen. Rand Paul, R-Ky.
NBC's "Meet the Press" — Panel discussion on the anniversary of the Boston Marathon bombings.
CBS' "Face the Nation" — Reps. Marsha Blackburn, R-Tenn., and Elijah Cummings, D-Md.
CNN's "State of the Union" — Reps. Steve Israel, D-N.Y., and Greg Walden, R-Ore.
"Fox News Sunday" — Reps. Sander Levin, D-Mich., and Charles Boustany, R-La.; Sen. Tim Scott, R-S.C.