WATCH: Trump defends 2A rights, says school shootings are 'a spiritual problem'

On Friday, former President Donald Trump spoke at the National Rifle Association's annual convention, which was held in Indianapolis, Indiana, and said school shootings in America was a "spiritual problem"

"Our country has been chock full of guns for centuries and there was no talk of massacres of schoolchildren until around the year 2000," Trump said. "That's when it really started. They started talking about it. This is not a gun problem. This is a mental health problem. This is a social problem. This is a cultural problem. This is a spiritual problem."

"If we can send $120 billion to Ukraine, then we can afford 1/10th of that amount to protect American children in American schools," Trump added.  

The New York Post reports that Trump promised to "stop Joe Biden's war on lawful gun owners" and received the "loudest ovation of the day."

Trump said he would send a bill to Congress to pass that would institute "national concealed carry reciprocity," which would allow concealed carry licenses, which are administered by individual states, to be valid across state lines. Currently, each state has their own laws and some states, such as North Carolina, recognize concealed carry permits from all states whereas other states such as New York, do not.

"Just like your driver's license or your marriage license, your Second Amendment must apply across state lines," Trump said.

Trump also said in his speech, "The politically incorrect truth that no one on the left wants to admit is that violent crime is rarely committed by legal gun owners. It is committed by a brutal class of hardened repeat criminals."