Arizona election clerk admits that using a Sharpie will impact the vote, after Democrat election workers make Trump supporters use Sharpies instead of a regular pen to mark their ballot, during the 2020 election.
This forces the ballots to be rejected by the machines, kicking them into adjudication, where the voters selection can be switched at the click of a button.
These practices were used all over the country during the 2020 election to switch Trump votes to Biden.