Republican presidential front-runner Donald TrumpDonald TrumpTrump's first fundraising email had 60 percent spam rate Trump, Clinton fundraising off Brexit vote UK vote triggers talks with US MORE is targeting Hillary ClintonHillary Rodham ClintonSanders shares star power with NY House hopeful Trump, Clinton fundraising off Brexit vote UK vote triggers talks with US MORE in a new ad, portraying the Democratic presidential candidate as not tough enough to handle major foreign policy issues.
A 15-second video posted to Trump's Instagram account shows Russian President Vladimir Putin showing off his martial arts skills and a masked militant pointing a gun at the camera.
"When it comes to facing our toughest opponents, the Democrats have the perfect answer," the video says, cutting to a clip of Clinton barking like a dog
last month when she taunted Republicans.
Putin cracks up in Trump's video before text appears back on screen, stating, "We don't need to be a punchline!"
Trump last month had decried what he called a double standard over Clinton's barking, calling the former secretary of State a "joke
The candidates are sharpening their barbs at one another on the heels of victories in several big states on Tuesday, including Florida. Their respective delegate leads make Clinton and Trump the leaders for their respective nominations.
Clinton on Tuesday night criticized the billionaire on waterboarding and panning his potential to represent the U.S. on the international stage.
"Our commander in chief has to be able to defend our country, not embarrass it," Clinton said, knocking Trump's plans for "rounding up 12 million immigrants, banning all Muslims" from the U.S. and embracing "torture."
"I think she's an embarrassment to our country," Trump shot back during a phone interview
Wednesday morning on CNN. "She's under federal investigation. She doesn't have the strength or the stamina to be president."