My favorite part of the video is that Trump keeps trying to do this stupid fucking power move where he gives a firm handshake and refuses to let go. Newsom was ready for it and Trump had to forcibly pull his hand away.
Edit: Sorry for not being clear. There is a link to a tweet in the article that has the video.
The “horizon” of the pavement isn’t horizontal—the airstrip is receding into the distance, with the far end behind Newsom. And the actual horizon is hilly, so it can’t be relied on, either—that’s why I think the vertical structures are a better indication of true up and down.
And of course Trump is leaning forward to hide his belly like he always does, but what makes the photo look so weird is that everyone behind him seems to be leaning to a lesser extent. If you turn the photo CW by 4 or 5 degrees, the two men by the stairs are standing straight while Trump and Newsom are both leaning toward each other. (It also becomes clear that Newsom is taller than Trump, even with the latter’s boosted heels—the original tilted photo makes them seem closer in height.)