*** Friday’s “Daily Rundown” line-up: Former Sen. Arlen Specter (D-PA) on being in the middle of the GOP primary debate… A deep dive into how exactly a new GOP candidate could still get into the race and rack up hundreds of delegates… NBC's Kristen Welker on the week's big developments in and around Washington… NBC's Atia Abawi with the latest from Afghanistan… More 2012 news with TIME's Michael Scherer, MSNBC’s Robert Traynham and former Obama White House spokeswoman Jen Psaki.
*** Friday's "Jansing & Co." line-up: MSNBC’s Chris Jansing interviews NEA-Secretary-Treasurer Rebecca Pringle, the Washington Post’s Jonathan Capehart; USA Today’s Jackie Kucinich; former Biden economic adviser Jared Bernstein, former U.S. Ambassador to Morocco Marc Ginsberg, and National Journal’s/Hotline’s Reid Wilson.
*** Friday’s “MSNBC Live with Thomas Roberts” line-up: NBC’S Luke Russert (filling in for Thomas Roberts) interviews former RNC Chair Michael Steele, former Ohio Gov. Ted Strickland, CNBC’s Ron Insana, presidential candidate Buddy Roemer, Politico’s Jim Vandehei & Newsweek/Daily Beast’s Andrew Romano.
*** Friday’s “NOW with Alex Wagner” line-up: Alex Wagner’s guests include New York Magazine’s John Heilemann, the Daily Beast’s Patricia Murphy, Rolling Stone Editor Eric Bates, CNBC’s Eamon Javers, Delaware Gov. Jack Markell, and “Act of Valor” Screenwriter Kurt Johnstad
*** Friday’s “Andrea Mitchell Reports” line-up: NBC’s Andrea Mitchell interviews the Washington Post’s Chris Cillizza, NBC’s Atia Abawi, Sen. Jim Webb, Gov. Bev Perdue, Gov. Brian Schweitzer, Politico’s Lois Romano, former Defense Secretary William Cohen, and the Washington Post’s Jonathan Capehart.
*** Friday’s “News Nation with Tamron Hall” line-up: MSNBC’s Tamron Hall interviews the Washington Post’s Nia Malika Henderson, Jimmy Williams, Detroit Free Press editorial and opinion editor Steve Henderson, Zachary Karabell, and Daily Beast contributor Asra Nomani
*** Saturday’s (and Sunday’s) “Weekends with Alex Witt” line-up: In her latest “Office Politics” interview, MSNBC’s Alex Witt will speak with advertising mogul Donny Deutsch.
*** Saturday’s (and Sunday’s) “Melissa Harris-Perry” line-up: On Saturday: Irshad Manji, NYU Moral Courage Project; Elon James White, comedian, writer; Nona Willis Aronowitz, Good Magazine; Matt Welch, Reason Magazine; Micki McElya, UConn history prof. On Sunday: Anita Hill, Brandeis Univ; Harry Smith, NBC; Michael Steele, MSNBC/former RNC chair; Maria Teresa Kumar, Voto Latino; Robin Fryday, filmmaker "Barber of Birmingham"; Darren Armstrong, grandson of civil rights activist James Armstrong.
*** Saturday’s (and Sunday’s) “Up with Chris Hayes” line-up: On Saturday: Meghan McCain, MSNBC Contributor; Bob Herbert, former New York Times columnist; Victoria DeFrancesco Soto, Latino Decisions; James Poulos, The Daily Caller; Michelle Goldberg, Newsweek/Daily Beast; Thomas Schaller, Baltimore Sun. On Sunday: Sen. Jeff Merkley (D-OR); Eyal Press, The Nation; Dan Dicker, author of, "Oil's Endless Bid: Taming the Unreliable Price of Oil to Secure Our Economy"; Elise Jordan, former speechwriter to Condoleeza Rice; Jeremy Scahill, The Nation; Anne-Marie Slaughter, former Director of Policy Planning for the United States Department of State for the Obama administration.