What did Donald Trump do today?

He projected on various things.

This afternoon, possibly only now realizing the political damage his attacks on the USPS had done, Trump tweeted this:

This comes less than a week after Trump explicitly admitted that he was withholding $25 billion in emergency funds that the USPS needed to ensure that absentee ballots could be delivered on time. Trump's newly appointed Postmaster General, a staunch political ally named Louis DeJoy, has recently disrupted service all across the country. DeJoy ordered mailboxes taken off streets in large cities, pulled 671 high-volume mail sorting machines in predominantly Democratic-leaning areas, and has refused to pay postal workers for enough hours to get mail delivered. Substantial delays have already resulted, including in the delivery of essentials like prescription drugs.

Accusing other people of what he himself has done is a long-established Trump tactic. That may provide context for his remarks at campaign stops today, in which he said his political opponents were "fascists" who were trying to rig the election.

Why does this matter?

• It's wrong to accuse other people of things you're doing.

• When it's the president doing it, it doesn't really matter if it's an intentional lie or a symptom of larger psychological issues.