As reporters challenged his assertions and reminded him that there was no evidence of widespread voter fraud, Epshteyn insisted that "there's been voter fraud in prior campaigns."
Asked to expand, Epshteyn said that there were "over 700 instances of voter fraud in Pennsylvania alone in 2012."
When a reporter with a British accent said that was not true, Epshteyn said, "I'm not sure you're as familiar with the system as you should be."
"In Colorado there were dead people voting in 2008 and 2012," Epshteyn claimed.
It's not the first time Epshteyn had alleged widespread voter fraud. During an appearance on CNN Tuesday, he claimed that "Barack Obama may have won in 2008 in North Carolina due to illegal voting.” He doubled down on that again at the debate saying that it's possible that undocumented immigrants voted in the state.