In 2020, Louis DeJoy (US Postmaster General) was forced to testify in front of Congress after making changes to the postal service which were perceived as potentially affecting mail-in ballots.

Will DeJoy make any changes to the US Postal Service which are perceived to be affecting the 2024 election?

For this to count, an active member of one of the three branches of government must accuse him of impropriety (i.e. President, VP, Cabinet, Reps in the House, Senators, Supreme Court justices…etc.). Their accusation must include that this could affect the election.