Democratic vice presidential candidate, Minnesota Gov. Tim Walz, whose military service has come under heavy scrutiny, "misspoke" in a 2018 video where he is heard talking about his handling of weapons "in war," a Harris-Walz campaign spokesperson said Friday.

"Governor Walz would never insult or undermine any American’s service to this country — in fact, he thanks Senator Vance for putting his life on the line for our country. It’s the American way," the Harris campaign spokesperson said in a statement to NBC News. 

"In making the case for why weapons of war should never be on our streets or in our classrooms, the Governor misspoke. He did handle weapons of war and believes strongly that only military members trained to carry those deadly weapons should have access to them, unlike Donald Trump and JD Vance who prioritize the gun lobby over our children," the spokesperson added.

I SERVED WITH TIM WALZ AS A REPUBLICAN IN THE HOUSE. HE'LL BE A GOOD VICE PRESIDENT

The 2018 video clip shows Walz discussing gun control and referring to his own military background. 

"We can make sure that those weapons of war, that I carried in war, is the only place where those weapons are at," Walz said in the clip, which was posted by Harris’ campaign on Tuesday.

Republicans, led by vice presidential candidate JD Vance, have criticized Walz's military service. Walz served 24 years in the National Guard but never deployed to a war zone. In 2003, he deployed with his unit to Vicenza, Italy in support of Operation Enduring Freedom, the name for the war in Afghanistan. 

He retired in 2005, several months before the unit deployed to Iraq. 

Vance, a Marine Corps veteran who served in Iraq, has accused Walz of "stolen valor."

"I wonder Tim Walz, when were you ever in war?" Vance said at an event in Michigan. "What was this weapon you carried into war? What bothers me about Tim Walz is this stolen valor garbage. Do not pretend to be something that you’re not."

"I’d be ashamed if I was him and I lied about my military service like he did," he added. 

Former President Trump’s plane was diverted to Billings, Montana, on Friday due to a mechanical issue, a Billings airport official said. 

The Republican presidential nominee is scheduled to hold a rally in nearby Bozeman, Montana, Friday evening, and is still expected to make it, Fox News has learned. 

Bozeman is roughly 120 miles west of Billings. 

"I just landed in a really beautiful place: Montana. So beautiful, flying over, and you just look down and that's the way it's supposed to be," Trump said in a video from his plane posted to social media, making no mention of any plane issues or of the diversion. "I'm here to do some fundraisers and most important to support Tim Sheehy who's running for the U.S. Senate, and we think he's going to do really well. We're going to have a rally. And it'll be a lot of fun." 

TRUMP, HARRIS IN DEAD HEAT IN POLL OF SEVEN CRITICAL BATTLEGROUND STATES 

Sheehy is running against current Democratic Sen. Jon Tester in the state. 

Trump will have to get on a private plane to fly to Bozeman, but it's unclear what time that flight will be. 

Trump is scheduled to speak at Montana State University at 8 p.m. local time, and is expected to draw thousands of supporters. He was also scheduled to have a fundraiser before the rally. 

Some of the rally crowd told Fox News they had been waiting for hours at the venue in anticipation of Trump's arrival.

TRUMP-ENDORSED NAVY SEAL TIM SHEEHY WINS REPUBLICAN NOMINATION IN MONTANA SENATE RACE TO UNSEAT JON TESTER

Trump flies on his private plane, nicknamed Trump Force One, which is a Boeing 757 that includes a living room, flat screen TV and a lounge.

"I'm a worker, right? I'm not a pleasure guy. I'm a worker guy, and it's a tremendous plane for that. It's got great speed, and all that energy gets us to where we're going on time,"Trump told Fox News in January while giving a private tour of his plane. 

He told Fox News that while he loves his plane, Air Force One, the plane flown by the president, is "very special." 

"Air Force One is always Air Force One, even if this is nicer," Trump joked. "Air Force One is still Air Force One. I mean it represents something very special." 

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Fox News Digital has reached out to the Trump campaign for comment. 

Meanwhile, Vice President Kamala Harris campaigned with running mate Minnesota Gov. Tim Walz in Arizona on Friday. 

Fox News' Bill Melugin and The Associated Press contributed to this report.