The American public overwhelmingly supports tighter gun laws in the wake of the Newtown kindergarten massacre. 85 percent of respondents to the Pew poll say that the gun show and private sale loophole, which allows purchasers who may have violent felonies to avoid a background check, should be closed. 80 percent think that people with a history of mental illness should not be allowed to buy a gun. Majorities also support banning semi-automatics (58%), assault weapons (55%) and high-capacity clips (54%). The suggestion by gun advocates that teachers should be armed is opposed by 57 percent of Americans. Now it’s up to Congress to listen to their constituents.