I guess I’m not following (and that second link is broken for me).

Suppose I create a positive meme about a campaign, which obviously happens a lot. Is that still “impersonation”? I find what Mackey did really unsavory and gross but I’m not really understanding what the principle being applied here actually is. Are meme/jokes/absurdities about political campaigns not legal?

Hm, I tried mirroring it now then... https://imgur.com/0znBo7v

Anyway, they are both clearly designed to imply an affiliation with the campaign. It's one thing to state that you support X, it's another thing to claim that you are speaking for or represent them.

And claiming this in obvious satire is now illegal? 2024 is coming up real quick, so everyone probably needs to understand the ground rules that this case changed.