A merciful reprieve from GOP primary politics this morning (except on CBS). Paul Ryan will be on “Fox News Sunday” and “Face the Nation” to patiently explain to Americans yet again that Medicare as they know it will soon be over whether they pass his budget or not. And Obama honcho David Plouffe will hit four of the five morning shows to patiently explain that Paul Ryan hates your grandma and also that ObamaCare is a wonderful program worth celebrating, even if the guy whose name it carries would rather talk about anything else.

Special bonus for legal eagles and con-law junkies: With Supreme Court oral arguments set to begin tomorrow, there’s bound to be lots of chatter this morning about the constitutionality of the mandate. The full line-up via WaPo:

NBC’s Meet the Press: White House senior adviser David Plouffe; Rachel Maddow, MSNBC; former Gov. Haley Barbour (R-MS); Ben Jealous, NAACP; Michele Norris, NPR; Doris Kearns Goodwin, presidential historian; David Brooks, New York Times

CBS’ Face the Nation: Rick Santorum (R-PA); Rep. Paul Ryan (R-WI); Sen. Chuck Schumer (R-NY)

ABC’s This Week: White House senior adviser David Plouffe; Rep. Michele Bachmann (R-MN); George Will, ABC; Cokie Roberts, ABC; Donna Brazile, Democratic strategist; Matthew Dowd, political strategist; Terry Moran, ABC

Fox News Sunday: White House senior adviser David Plouffe; Rep. Paul Ryan (R-WI); Brit Hume, Fox News; Kirsten Powers, The Daily Beast; Paul Gigot, Wall Street Journal; Juan Williams, Fox News

State of the Union with Candy Crowley: White House senior adviser David Plouffe; Sen. Lindsey Graham (R-SC); Gov. Rick Scott (R-FL); Mike Duffy, Time; Susan Page, USA Today