Meanwhile, a lawyer for the Florida deputy who resigned after it emerged he didn't enter Marjory Stoneman Douglas High School during the mass shooting said Monday that Peterson is not "a coward" and acted appropriately.
The President once again called for the need to "harden" schools and arming "people with a certified training" to carry guns in schools, though he noted that "some people will oppose" that - and urged those opponents to voice their criticism. Trump says the deputies "weren't exactly Medal of Honor winners". The weapon was not modified with a bump stock, officials said.
"Don't worry about the NRA", he said.
Asked on Thursday whether the federal government or state and local municipalities would pay the millions of dollars it would cost to train and arm teachers, White House spokesman Raj Shah said "the policy hasn't been fleshed out", adding "Do we really think that that's too much to pay for school safety?" When Toomey said the bill didn't, Trump said, "Because you're afraid of the NRA, right?"
Trump urged governors to revisit the closure of mental institutions, saying there should be a half-measure between institutionalisation and leaving potentially unsafe people "in their house".
Trump has signaled a willingness to address gun issues in the wake of the Parkland, Florida, school shooting that left 17 people dead earlier this month. It would seem that asking teachers to, as a secondary responsibility to their primary role as educators, make a decision on when to pull out weapons and shoot would increase the probability of more gun violence on school campuses.
"A lot of the individuals that helped protect others that day weren't carrying firearms, which I think shows that you can be helpful in that process without it", she was quoted as saying by CNN.
A lawyer representing Peterson defended the former deputy's action in a statement Monday. They were listening to what was going on. As for the NRA, Trump told the governors the organization is "on our side", adding, "You guys-half of you are so afraid of the NRA".
The US president also said he met with leaders of the National Rifle Association and told them, "fellows, we have to do something".
Gun ownership is seen by many in the U.S. as a sacred right and a crucial part of their heritage.