As President Donald Trump calls for specially trained teachers to carry firearms in schools to guard against another mass shooting, the proposal is being rejected by New York’s statewide teachers union.

“The simple answer is no. Arming teachers in schools seems misguided at best,” said New York State United Teachers union President Andy Pallotta. “How would it appear? You’re teaching, in front of a classroom and you have a holster with a gun in it. How does that make it a beautiful learning environment? I can’t understand that.”

The shooting at Marjory Stoneman Douglas High School in Florida has renewed and heightened a national debate over gun control. Some are now calling for armed guards in schools even as a sheriff’s deputy stationed at the school resigned after it was revealed he took cover and did not respond to the shots being fired.

“I think each community would have to make a decision whether they would or wouldn’t want that to be part of their school environment,” Pallotta said. “Having more security in a school, we support that. We also know it didn’t work for the students, teachers and staff in Florida.”

Providing armed resources officers in schools would likely be an expensive program. Republican state lawmakers have called for more funding to add armed office in schools, an idea Assembly Speaker Carl Heastie said in a statement he opposes.

“Instead, we should be addressing the root causes of gun violence by reducing the number of guns on our streets, limiting access to these deadly weapons and increasing mental health services to ensure the kind of healthy environment that will allow kids to grow and thrive.

Supporters of gun rights in New York say there should be someone stationed at schools to protect students and teachers.

“If you really want to protect the kids, protect the kids,” said Tom King of the New York Rifle And Pistol Association. “Put some type of armed professional in the school to prevent this from happening.”

But King is not pushing for armed teachers. Instead, he wants to see bolstered security, including metal detectors.

“I’m not advocating for teachers to have guns,” he said. “I’m advocating for someone in the schools to protect the kids. If a teacher wants to train for this or go for some type of special training to prepare for this, that’s fine. But that’s not what I’m advocating for.”

Gov. Andrew Cuomo meanwhile has called the proposal to arm teachers “ludicrous.” This week Cuomo announced a multi-state coalition of northeast Democratic governors to crackdown on illegal weapons flowing into their states.

“The problem is I can’t protect the people of my state with just state laws because the guns come in from over the border,” Cuomo said.