President Trump revealed in a series of tweets Monday that he will not support raising the federal minimum purchasing age for a firearm to 21.

The president’s tweets suggest that there is not enough political support for raising the federal minimum age to 21.

The National Rifle Association vigorously opposed the idea.

“This bill punishes law-abiding gun owners for the criminal acts of a deranged individual,” NRA spokesman Chris Cox said in a statement “Securing our schools and protecting the constitutional rights of Americans are not mutually exclusive.”

Instead, the president is promising federal assistance to help fund firearms training for school personnel. The proposal was part of a slew of school safety measures released by the White House Sunday evening in the wake of last month’s school shooting that killed 17 people at Marjory Stoneman Douglas High School in Parkland, Florida.

It would also strengthen background checks, expand mental health programs, and help military veterans and retired law enforcement officers find jobs in education.

Education Secretary Betsy DeVos, who will head a new commission to examine ways to protect schools from gun violence, called the proposals a “pragmatic plan to dramatically increase school safety.”

“This is an issue that is best decided by local communities and by states,” DeVos said. “The point is that schools should have this tool if they choose to use the tool, but nobody should be mandated to do it.”