From Ballotpedia:

Kevin Kosar, Marc Hyden and Steven Greenhut (R Street): “Voting absentee or by mail is a safe, trusted and age-old practice. Moreover, expanded access to absentee voting comports with conservative principles, which helps explain why a number of conservative state policymakers have advanced proposals to achieve it. Finally, and critically, policymakers should take note that polling data indicate very clearly that the public strongly favors expanded access to absentee voting and that its results are partisan-neutral.” – “The Conservative Case for Expanded Access to Absentee Ballots,” June 17, 2020.