Guest lineups for the TV news shows today:

ABC’s “This Week,” 7 a.m., Channel 9 — Samantha Power, U.S. ambassador to the United Nations; Gov. Deval Patrick, D-Mass.; Sen. Rand Paul, R-Ky

NBC’s “Meet the Press,” 8 a.m., Channel 4 — Panel discussion on the anniversary of the Boston Marathon bombings.

CBS’ “Face the Nation,” 8:30 a.m., Channel 13 — Reps. Marsha Blackburn, R-Tenn., and Elijah Cummings, D-Md.

CNN’s “State of the Union,” 6 and 9 a.m. — Reps. Steve Israel, D-N.Y., and Greg Walden, R-Ore.

“Fox News Sunday,” 8 a.m., Channel 11 — Reps. Steve Israel, D-N.Y., and Greg Walden, R-Ore.

PBS’ “Moyers & Company,” 9 a.m., Channel 6 — Harvey J. Kaye, Ben and Joyce Rosenberg Professor of Democracy, justice Studies at the University of Wisconsin-Green Bay, director of the school’s Center for History and Social Change.

PBS’ “Washington Week,” 10 a.m., Channel 6 — Michael Duffy of TIME Magazine; Alexis Simendinger of Real Clear Politics; Fawn Johnson of National Journal; Amy Walter of the Cook Political Report.

PBS’ “Arizona Week,” 10:30 a.m., Channel 6 — Cal Baker, superintendent, Vail School District; Doug Price, superintendent, Tanque Verde School District.