Guest lineups for the Sunday TV news shows:
ABC's "This Week" _ GOP presidential candidate Rick Perry; TV host Stephen Colbert.
NBC's "Meet the Press" _ GOP presidential candidate Newt Gingrich; Senate Majority Leader Harry Reid, D-Nev.; Sen. Lindsey Graham, R-S.C., and Rep. Tim Scott, R-S.C.
CBS' "Face the Nation" _ GOP presidential candidate Rick Santorum; Gingrich; Sen. Jim DeMint, R-S.C.
CNN's "State of the Union" _ Perry; Sen. John McCain, R-Ariz.; David Axelrod, political adviser to President Barack Obama's re-election campaign.
"Fox News Sunday" _ Santorum.