But assume this did happen, and Mattis did not disclose the information that US airspace was violated--that usurped the civilian authority via the executive branch, and it wasn't a case of defying an illegal order. If true, that cannot be allowed to stand.
It's a mistake to even buy into this lie. There's no way this happened on Trump's watch. Period. Especially from China. He made defeating China economically his mission from day one.
This is ALL just to deflect that Biden ALLOWED this to happen. To muddy the waters. There's no other way to say that other than he did ALLOW it to finish the mission.