Fact-checking Hawley’s claim about Pennsylvania’s election law - PolitiFact

... "There is no in-person requirement in our state constitution," Casey said. "The constitution set a floor, not a ceiling, for this type of voting." ...

https://www.politifact.com/factchecks/2021/jan/08/josh-hawley/fact-checking-hawleys-claim-about-pennsylvania-mai/