A pro-Hillary ClintonHillary Diane Rodham ClintonMissing piece to the Ukraine puzzle: State Department's overture to Rudy Giuliani On The Money: Trump downplays urgency of China trade talks | Chinese negotiators cut US trip short in new setback | Trump sanctions Iran's national bank | Survey finds Pennsylvania, Wisconsin lost the most factory jobs in past year Meghan McCain, Ana Navarro get heated over whistleblower debate MORE super-PAC is digging into the archives to attack Donald Trump on national security, launching a variation of the 3 a.m. call ad used to attack Barack ObamaBarack Hussein ObamaKrystal Ball tears into 'Never Trump' Republicans Sanders campaign announces it contacted over 1 million Iowa voters Iowa Steak Fry to draw record crowds for Democrats MORE in 2008. 

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In "Dangerous President," a red phone rings continuously while a President TrumpDonald John TrumpJulián Castro: It's time for House Democrats to 'do something' about Trump Warren: Congress is 'complicit' with Trump 'by failing to act' Sanders to join teachers, auto workers striking in Midwest MORE sits idly by on Twitter. 

"The world is a dangerous place," a narrator says as the ad opens with a shot of the White House at 3 a.m. "At any hour, our president could be called on to act calmly, decisively, intelligently."

Meanwhile, the Trump character is sitting nearby scrolling through his Twitter feed.

"How great is Twitter? Boom. Just zinged another loser. Hit him with double exclamation. Bam!" says an actor portraying Trump. "Will someone get the damn phone? How annoying. Who is calling me at 3 a.m. anyway? Total loser."

The spot will begin airing in August, according to CBS News, in an ad buy worth at least $100,000 as part of Priorities' $35 million digital advertising program. 

"Donald Trump is the most dangerous and divisive nominee in modern history — and before he takes the stage tonight, Priorities USA is previewing a new digital ad we're calling 'Dangerous President,' " the group's communications director, Justin Barasky, said to CBS News.  

Trump has used that 2008 ad against Clinton throughout the campaign, saying that as secretary of State, she wasn't awake to answer phone calls on the 2012 terrorist attacks in Benghazi. 

"She's a disaster. Remember the famous call at 3 o'clock in the morning? She was sleeping, OK? She was sleeping. You know, it was her ad. Who would you like at 3 o'clock in the morning? Well, the phone rang, and she was sleeping," Trump said in April.