AP - A resurgent Rick Santorum won Minnesota's Republican presidential caucuses with ease Tuesday night and reached for victory in Colorado, raising fresh questions about front-runner Mitt Romney's appeal among the ardent conservatives at the core of the party's political base.

AP - Same-sex marriage moved one step closer to the Supreme Court on Tuesday when a federal appeals court ruled California's ban unconstitutional, saying it serves no purpose other than to "lessen the status and human dignity" of gays.

AP - Political turmoil over abortion and birth control spread suddenly on Tuesday. A high-ranking official resigned from the Komen breast-cancer charity after its backtracking treaty with Planned Parenthood, and Republican presidential candidates blistered the Obama administration for a recent ruling on Catholic hospitals and contraception.