political violence are an attack on our democracy itself. no nation can succeed that tolerates violence or the threat of violence as a method of political intimidation, coercion or control. >> reporter: security tight in new york city with national guard soldiers deployed it bridges, tunnels and airports and increased police presence at media organizations. >> i live a block from time warner ctr. so i was sheltering for two hours yesterday. it was remarkable. thank you so much, appreciate it. one of those targets, cia director john brennan, wasting no time blaming donald trump. >> donald trump too often is helped to incite these feelings of anger if not violence. this is what a lot of boules, a lot of individuals do.