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This is the lineup for the Sunday talking heads shows:

ABC's "This Week" — House Majority Leader John Boehner, R-Ohio; actor and stem-cell research activist Michael J. Fox; actress and UNICEF ambassador Sarah Jessica Parker.

CBS' "Face the Nation" — Reps. John Murtha, D-Pa., and Duncan Hunter, R-Calif.; Democratic National Committee Chairman Howard Dean and Republican National Committee Chairman Ken Mehlman.

NBC's "Meet the Press" – Democratic Rep. Ben Cardin and Republican Lt. Gov. Michael Steele, Maryland Senate candidates.

CNN's "Late Edition" — Sens. Joseph Biden, D-Del., and Richard Lugar, R-Ind.; Samir Sumaidaie, Iraqi ambassador to the U.S.; Reps. Charles Rangel, D-N.Y., and Ileana Ros-Lehtinen, R-Fla.; retired Army Maj. Gen. Paul Eaton.

"Fox News Sunday" — Gov. Arnold Schwarzenegger, R-Calif.; Sens. George Allen, R-Va., and Charles Schumer, D-N.Y.

Whoever is in charge of managing the green room on Face the Nation is going to have their hands full. Regular readers will remember that Duncan Hunter was in charge of the Swift Boating of Jack Murtha. Taylor Marsh did some fantastic posts on the subject for those who want to refresh their memories, but you can bet that Jack Murtha doesn't need to.

Photo Credit:  A new Hubble image – among the largest ever produced with the Earth-orbiting observatory — gives the most detailed view so far of the entire Crab Nebula. Such images are hailed as indicative of Hubble's scientific value. Jeff Hester — Arizona State University Via Nasa And European Space Ageny Photo