Hillary Clinton went after Bernie Sanders yesterday on the campaign trail, pointing out that guns from Vermont are being used in murders in New York.

"Most of the guns that are used in crimes and violence and killings in New York come from out of state. And the state that has the highest per capita number of those guns that end up committing crimes in New York come from Vermont," the former First Lady argued. 

Clinton has consistently called out the Vermont senator for casting votes against gun control measures while in Congress. 

Judge Andrew Napolitano weighed Clinton's argument this morning on Fox Business Network, saying she is adding "two plus two and getting 22."

Napolitano said Clinton is "profoundly wrong" in her argument about the guns coming out of Vermont, saying there are no gun manufacturers in the state.

The Washington Post later called Clinton's claim "a misleading data point."

Napolitano said Clinton believes that gun manufacturers should be liable in court for the misuse of firearms. 

"It'd be like suing GM because a driver of a GM car was involved in a DWI," he said.

The judge said that existing law states that a manufacturer cannot be sued over the "misuse" of one of its products by the owner.

Watch the segment above.

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