Colorado state senators on Monday rejected legislation proposed by Republicans that would allow concealed weapons [1] on school campuses, KJCT 8 News reports. Colorado Republicans proposed five pieces of legislation in both the state House and the Senate [2] that were either similar or identical to previous pro-gun bills that have failed in the past, according the Colorado Statesman. Two nearly identical bills introduced in the House and Senate would ease restrictions on carrying concealed handguns and firearms by lifting permit requirements, the Statesman reported. Other sets of bills would prohibit authorities from confiscating weapons during emergencies and would eliminate the requirement that the Colorado Bureau of Investigation perform backgrounds checks on potential gun owners because they are already screened once by weapons dealers…