First take: Obama faces another mass shooting — and political battle

President Obama said Sunday the nation again faces the "horrific massacre" of innocent people. While the president has become all-too-accustomed to consoling a nation after tragedy, the Orlando attack is likely to become something different: An issue in the presidential campaign. The commander in chief, who has now spoken out at least 15 times in the wake of a mass shooting during his presidency, has also mourned gun killings at an elementary school in Connecticut, a movie theater in Colorado and an African-American church in South Carolina. He described the Orlando club attack as "the most deadly shooting in American history," one targeting gays and lesbians and leading to the deaths of at least 50 people.