Article snippet: Beto O’Rourke has already backed mandatory buybacks for assault weapons, but at Thursday’s Democratic debate, he left no ambiguity about what that would mean. ‘‘Hell, yes, we’re going to take your AR-15, your AK-47,’’ he said. Less than an hour later, O’Rourke received what he described as a ‘‘death threat’’ from a fellow Texas politician. ‘‘My AR is ready for you Robert Francis,’’ Briscoe Cain, a Republican state representative from the Houston area, wrote on Twitter, using O’Rourke’ legal name. Cain did not respond to multiple requests for comment about his message. But many read it as clear threat of violence, and a spokeswoman for O’Rourke’s campaign told The Washington Post that staffers had reported the tweet to the FBI. ‘‘This is a death threat, Representative,’’ O’Rourke wrote on Twitter. ‘‘Clearly, you shouldn’t own an AR-15 - and neither should anyone else.’’ Cain shot back: ‘‘You’re a child Robert Francis.’’ Twitter also took quick action, removing the lawmaker’s tweet roughly two hours after it appeared. A spokesman told The Post that it violated the company’s terms of service, which prohibit violent threats. Thousands responded to the tweet before it was taken down, and Cain engaged with some. Asked if he had just threatened to shoot a presidential candidate and former member of Congress, he replied, ‘‘You’re an idiot.’’ When another critic told him they had saved a screenshot of his comments for the FBI, the lawmaker responded, ‘‘Cool bro.’’ Cain’s... Link to the full article to read more