The Republican Party should remove Donald Trump Donald John TrumpBiden leads Trump by 36 points nationally among Latinos: poll Trump dismisses climate change role in fires, says Newsom needs to manage forest better Jimmy Kimmel hits Trump for rallies while hosting Emmy Awards MORE as its presidential nominee following controversial comments he made Tuesday about Hillary Clinton Hillary Diane Rodham ClintonBiden leads Trump by 36 points nationally among Latinos: poll Democratic super PAC to hit Trump in battleground states over coronavirus deaths Battle lines drawn on precedent in Supreme Court fight MORE and supporters of the 2nd Amendment, "Morning Joe" host Joe Scarborough writes in a new Washington Post op-ed.

"A bloody line has been crossed that cannot be ignored. At long last, Donald Trump has left the Republican Party few options but to act decisively and get this political train wreck off the tracks before something terrible happens," wrote the former Republican congressman.

Trump at a rally Tuesday appeared to joke about the possibility of gun owners taking action against Clinton.

“Hillary wants to abolish, essentially abolish the Second Amendment,” Trump said to boos from the crowd.

“By the way, if she gets to pick her judges, nothing you can do folks,” he then added.

“Though the Second Amendment people, maybe there is, I don't know.”

Many people took Trump's comments as a joke about the assassination of the Democratic presidential nominee, though Trump said Tuesday that's not what he intended.

Scarborough said the Secret Service should interview Trump and ask him to explain his comments and Speaker Paul Ryan Paul Davis RyanKenosha will be a good bellwether in 2020 At indoor rally, Pence says election runs through Wisconsin Juan Williams: Breaking down the debates MORE (R-Wis.) should revoke his endorsement.

"Paul Ryan and every Republican leader should denounce in the strongest terms their GOP nominee suggesting conservatives could find the Supreme Court more favorable to their desires if his political rival was assassinated," he wrote.

"Paul Ryan and every Republican leader should revoke their endorsement of Donald Trump. At this point, what else could Trump do that would be worse that implying the positive impact of a political assassination?"

Scarborough has been a constant critic of Trump throughout the campaign.