Roy Moore pulls out gun while speaking at rally

Alabama Senate candidate Roy Moore pulled out a handgun during a campaign rally Monday night.

During the rally — which came just hours ahead of the Republican primary runoff Tuesday — Moore said he dealt with nearly three months of negative ads, ABC News reported.

"Ads that were completely false. That I don't believe in the Second Amendment," Moore, a former state Supreme Court chief justice, said.

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He then turned and pulled out a handgun, while saying: "I believe in the Second Amendment."

The comment was met with cheers from the audience.

Moore headed into Election Day leading in polls over Sen. Luther StrangeLuther Johnson StrangeRoby wins Alabama GOP runoff, overcoming blowback from Trump criticism Once a Trump critic, Ala. rep faces runoff with his support Crowley surprise tops huge night for left MORE (R-Ala.), who has the backing of President Trump and Senate Majority Leader Mitch McConnellAddison (Mitch) Mitchell McConnellPelosi: 'Thug' Putin not welcome in Congress GOP to White House: End summit mystery Sunk judicial pick spills over into Supreme Court fight MORE (R-Ky.).

Strange's allies had poured nearly $11 million into the race as of Friday, and Strange's campaign organization has outspent Moore by more than 300 percent.

The winner of the Tuesday runoff election will face Democrat Doug Jones in the December general election as Republican try to keep the seat vacated by Attorney General Jeff Sessions.

Trump on Monday said that if Alabama voters elected Moore, Democrats would win the general election for the seat.

Conservatives figures like 2008 GOP vice presidential nominee Sarah Palin and former White House chief strategist Stephen Bannon have backed Moore as an anti-establishment Republican.