The ad from Priorities USA, called “I Love War,” juxtaposes Trump’s past remarks about his affinity for war and the power of nuclear energy against a backdrop of images of mushroom clouds, land stripped bare by massive explosions and old-time war reels.
“I’m really good at war, I love war in a certain way,” Trump, the Republican presidential nominee, says in one clip.
“Including with nukes, yes, including with nukes,” he says.
Priorities USA is putting $5 million behind the ad, which will run begin running on Friday in six battleground states: North Carolina, Ohio, Florida, Nevada, Iowa and New Hampshire.
“Nuclear is just, the power, the devastation is very important to me,” Trump says in the ad.
“I want to be unpredictable,” he says as the spot concludes.
Allies of Clinton, the Democratic presidential nominee, are hammering Trump in a coordinated effort to portray him as unfit to be commander in chief.
The Trump campaign is pushing back, rolling out endorsements on Tuesday from 88 retired military figures who are backing Trump for president, calling him the leader to deal with "burgeoning threats" facing the country.