AP - Democrats Barack Obama and Hillary Rodham Clinton sparred, for the most part cordially, over immigration, health care and the war in Iraq in their first one-on-one debate on Thursday as they faced high-stakes Super Tuesday contests that could go a long way toward determining the party's presidential nominee.

AP - A missile from a U.S. Predator drone struck a suspected terrorist safehouse in Pakistan and killed a top al-Qaida commander believed responsible for attacks on U.S. forces and the brazen bombing during a visit last year by Vice President Dick Cheney to Afghanistan, a U.S. official said Thursday.

AP - Republican presidential candidate Mitt Romney on Thursday accused his rival John McCain of adopting underhanded tactics from Richard Nixon, the GOP president who resigned in disgrace.