Trump doesn't back down, that is correct. But when he really looks like a schmuck in the news, he is sensitive to that. Sometimes he lies and says, 'fake news, I never did that'. He already has claimed he only meant to address foreigners outbidding the US for 3M masks.

But you are correct, he never admits he was wrong. It was always someone else, not him, or the news is lying and he never said/did x.