arming teachers. the teacher would have shot the hell out of him before he knew what happened. reporter: and that s not the first talking point of the nra. we must immediately harden our schools. i want to harden schools. harden, harden, harden, harden school. reporter: according to a pew poll last year, twice as many gun owners said they had contacted a public official on the issue of guns than non-gun owners. but there are signals. republicans in suburban districts may sense a change in the political climate. a florida congressman whose district mr. trump won by nine points came out in favor of a gun weapons ban on friday. i spent my life trying to defend this country and i can t stand to see the weapon i carried in defense of this country used to kill kids. reporter: still most red state and rural democrats are wary of the gun issue, worrying it will energize the republican base. five senators who caucus with