Yes brilliant move. And mask wearing is still up to local/state government "authorities".  For example, here in Louisiana the Dem Governor issued a "mask mandate" E.O.  Then the State Attorney General issued a Legal Opinion in regards to the E.O as "likely unconstitutional and unenforceable" with penalties for "mask police".  Then in the Parish (county for rest of the country) I live in the Sheriff has stated he WON'T be enforcing the governor's "mask mandate".  So for me nothing has changed but Trump has removed the main reason for "mail-in voting".  BTW I will happily wear a mask to vote!  Why?  Because it's the "patriotic" thing to do. LOL!