Free Press advises voters that it is too late to vote by mail. Secretary's of State in Wisconsin, Arizona, and other officials have gone on record.

NPR reports It May Be Too Late To Mail Back Your Ballot. Election Officials Stress Other Options” by Sam Gringlas. Quoted from this article:

"We are too close to Election Day, and the right to vote is too important, to rely on the Postal Service to deliver absentee ballots on time," Michigan Secretary of State Jocelyn Benson wrote in a statement on Tuesday. "Citizens who already have an absentee ballot should sign the back of the envelope and hand-deliver it to their city or township clerk's office or ballot drop box as soon as possible."

In Arizona, Secretary of State Katie Hobbs tweeted on Tuesday, "Today is the last recommended day to mail back your ballot. After today, return your ballot to any election drop box or voting location in your county."

Washington Post reports “Amid USPS delays, election experts and campaigns weigh in: Don’t mail your ballot”