Richard L. Hasen, a professor of law and political science at the University of California, Irvine, School of Law, who follows the battle over voting closely, said that mail was more vulnerable to tampering than in-person voting. “We know that voter fraud, while very rare, more commonly occurs with absentee ballots than in-person balloting,” he said. But, he warned, Republicans should not use that as a reason to find more ways to curtail it.
Wisconsin Election Fight Heralds a National Battle Over Virus-Era Voting
The New York Times, April 6, 2020
April 6, 2020