Today Mr Trump’s lawyer stated they had good evidence about people trying to vote in person only to discover their vote had already been cast. In Nevada they think votes were cast by people not living in the state. There are also in some states issues about delivery and dates of postal votes.
This confirms the likelihood of a month of rallies and court cases to seek to reverse Mr Biden’s current lead prior to certification of the vote. It is most important only valid votes are counted.
I did not send my draft letter yesterday and will pause as these issues develop.