Trump had a cheering section at the press conference. No really he did.

[jaxexpat]

7. Voting by mail, when the reliability of the mail delivery system is being attacked and......

when state governments are arbitrarily declaring new rules for allowing mailed ballots, is threatened, in my opinion.

I've gotten in trouble here before for stating my concerns but these factors remain problematic and out of the voter's control.

I suggest that everyone should:
Know what the deadline, date and time, for receiving your ballot is for your state.
Know where the ballot must be received.
Don't accidentally double vote if you're concerned that your mailed vote is not counted. Know the rules about this.