Summary: With Rick Santorum out of the GOP race, Mitt Romney and President Barack Obama are gearing up for the general election. But recent comments about Romney's wife, Ann, have caused controversy over gender politics. Plus, a look at the fragile ceasefire in Syria. Joining Gwen: Dan Balz, Washington Post; Beth Reinhard, National Journal; John Harris, POLITICO; Doyle McManus, Los Angeles Times.
