Hillary Clinton barked like a dog Monday before hundreds of people at a rally in Nevada after she told a joke about a pooch that could sniff out Republican lies.

The crowd laughed as she went, “Arf, arf, arf,” while telling of a campaign ad she heard years ago in Arkasas that featured a dog barking when he heard a politician lie.

“I’m trying to figure out how we can do that with Republicans,” Clinton joked before barking.