They had a chance (if not several) to stop Omar Mateen from arming himself:
Senate Republicans rejected a bill that aims to stop suspected terrorists from legally buying guns, on Thursday. The vote came a day after at least 14 people were killed during the San Bernardino massacre in California by two suspects, including a woman said to have pledged allegiance to ISIS. Forty-five senators voted for the bill and 54 voted against it. One Democrat, Sen. Heidi Heitkamp of North Dakota, and one Republican, Sen. Mark Kirk of Illinois, crossed party lines.
The NRA did not respond to a request on Friday for comment. But the gun rights lobby group told MSBC last month it wants to ensure that Americans who are wrongly on the terrorist list are are afforded their constitutional right to due process.
I don't want to hear another &*$%#@*&% word from Republicans harping about the "true" threat to our country. Or how Democrats put the interests of a tiny minority above the interests and desires of the vast majority of Americans. This bill would have allowed those denied the purchase of a firearm to plead their case to an administrative judge, and it would also have alerted the handful of wrongfully classified individuals that they were in fact on a watch list. Just basic common sense, as Dianne Feinstein so eloquently stated: