The GOP's 2008 presidential nominee, Sen. John McCain (R-AZ), joins us exclusively Sunday. He weighs in on the still-faltering economy, prospects for health care reform, global hot-spots, the upcoming Supreme Court nominee hearings, the direction of the Republican party and his former running mate Sarah Palin's political future. Then, the view from the other side of the aisle with Senate Judiciary Committee member Sen. Chuck Schumer (D-NY). Plus insights and analysis from our political roundtable: Fmr. Adviser to Pres. George W. Bush, Karen Hughes; NBC's Andrea Mitchell; Democratic Strategist Bob Shrum; and Politico's Roger Simon.