Carville called such claims "a fundamental attack on the country itself" on Wednesday's broadcast of MSNBC's Morning Joe.

However, Carville conceded it is "possible" to "rig a voting machine to get a 100 votes here or a 100 votes there."

"I tell my students, if there's such a thing as a sacred moment in a secular democracy is when the former president gets on the helicopter and goes to Andrews [Air Force Base] to go to the plane to go back wherever they came from and a new president takes office. That's the moment, that's the key moment in any democracy because, you know, you lose, you leave or you're eight years up and you go and the new person comes in," Carville said.

"This is a fundamental attack on the country itself the underpinning of it that somehow or another it's rigged or it's not fair," the veteran Democratic strategist said. "People, you know, some people believe that."