Two senators leading negotiations on a possible deal on gun background checks confirmed that they couldn’t reach an agreement. Sen. John Cornyn (R-Texas) told reporters on Wednesday that he was negotiating with Sen. Chris Murphy (D-Conn.) on a potential deal but talks were cut off. Murphy confirmed in a statement released later that the talks have indeed broken down. “I’ve spent a lot of time talking with Senator Cornyn about proposals to increase background checks. I have been very open to compromise and I think Senator Cornyn was negotiating in good faith,” he said. “But we haven’t been able to get to a bill that would meaningfully increase the number of gun sales that require background checks Murphy said that he is speaking with other Republican senators about other gun-control proposals. “The good news is that I’m still talking with other Republican colleagues about different proposals to expand background checks,” …