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KEARNEY, Mo. (CNN) — The Missouri state legislature is trying to accomplish something that’s never been done: pass a law that will not only let residents own a machine gun, but also arrest federal agents if they try to take it away.

According to CNN, the Missouri Governor’s press secretary said there is a small provision in House Bill 436 that would make this possible, although it’s unlikely.

If passed, the bill would also make it illegal for anyone to publish any information about a gun owner.

“There are people saying this is the same as seceding from the Union,” said gun owner Kevin Jamison. “Missouri did not secede from the Union in 1862, and it does not do so by passing this law.”

The legislation already passed once through the Republican-led House and Senate — only to be vetoed by Democratic Gov. Jay Nixon.

Nixon argued that the legislation violated a provision in the U.S. Constitution called the Supremacy Clause. The Supremacy Clause gives preference to federal laws over state laws.

Lawmakers insist what they’re proposing is not only constitutional, but essential to protect the rights of gun owners.

So Wednesday, the legislature votes to overide the veto.

What the bill says

The author of the bill is optimistic.

“This bill doesn’t put one new gun on the street,” State Representative Doug Funderburk said. “It strictly says that Missouri is going to protect the Second Amendment rights of Missourians.”

By superseding current federal regulations, House Bill 436 would make it a criminal offense to enforce background checks or to publish the name and address of a gun owner in the state.

It would also allow citizens to own a machine gun, which is banned under federal regulations. Most importantly, it will nullify federal gun laws and make it a misdemeanor for a federal agent to attempt to enforce them.

Opponents worry

The Brady Center to Prevent Gun Violence on Wednesday announced that it is prepared to file suit in federal court against Missouri’s law that criminalizes enforcement of federal gun regulations and declares them null and void within the state.

“This outrageous law would allow criminals to buy machines guns, and make federal law enforcement officers into criminals for trying to stop gun crimes,” said Jonathan Lowy, Director of the Legal Action Project at the Brady Center. “The people of Missouri want their legislators focused on sensible solutions to gun violence, instead of grandstanding with ridiculous, unconstitutional declarations that the federal government has no authority to address our national gun violence problem. If the legislature chooses to enact this misguided and dangerous law, we are prepared to file suit immediately to get it struck down.”

Multiple states like Ohio, Minnesota and Texas have pursued similar bills in recent months in reaction to attempts at federal gun control legislation after the December shootings at Sandy Hook Elementary School in Newtown, Conn.

Opponents worry such a law could all but end any joint operations between local and federal law enforcement agencies when it comes to taking guns off the streets.

St. Louis Police Chief Sam Dotson has been one of its most vocal opponents.

“(We are) basically saying to criminals, ‘Okay criminals, it’s Okay to come to Missouri. We won’t prosecute you to the fullest extent of the law,'” he said.

If the state legislature succeeds in overriding the governor’s veto, the issue would almost certainly head to court.