The video then cuts to footage of Clinton play-barking.
“We don't need to be a punch line!” a new caption reads.
Trump and the former secretary of state have escalated attacks on each other as they inch closer to locking down their respective parties’ nominations. Trump regularly criticizes Clinton for her use of a private email server, saying that she should go to prison, and has made mocking insinuations about former president Bill Clinton’s marital infidelities.
Clinton, meanwhile, has taken a hard-line stance on Trump’s anti-immigrant rhetoric and has accused him in sharp terms of encouraging a culture of violence at his campaign rallies.
The footage comes from a Clinton campaign rally in February, when she told a story about an old campaign ad that featured a dog who barked whenever someone lied. Clinton’s insinuation was that the Republican field was lying about many of their claims.