Sen. John McCain says he doesn't understand the threats from some of his Republican colleagues to filibuster a bill on background checks to buy guns. "I don't understand it," the Arizona Republican said on Sunday of the threat coming from Sen. Rand Paul,Sen. Ted Cruz, Sen. Mike Lee and nine other Republicans. "The purpose of the United States Senate is to debate and to vote and to let the people know where we stand.” "What are we afraid of? ... If this issue is as important as we all think it is, why not take ... it up and debate?"...
