If that doesn't work, he can always say ...

Funny isn't the word I'd use. Grotesquely corrupt and a sign of the brazenness of the traitors in Washington? Yes. Funny? No.

Well, when you literally have no other excuse you can turn to, "I forgot" is usually the default.

It's basically the absolute minimum possible way of accepting responsibility for your actions.

"Durr, I forgot, my bad."