The Washington Post, gun rights lobbyists and pro-gun lawmakers are hoping to weaken existing gun laws by amending a background checks bill in the Senate.

"Most worrisome to those who advocate new gun limits is an expected amendment that would achieve one of the National Rifle Association’s biggest goals: a 'national reciprocity' arrangement, in which a gun owner who receives a permit to carry a concealed weapon in any one state would then be allowed to do that anywhere in the country," the Post's Karen Tumulty and Ed O’Keefe wrote on Friday.