That 86 on Whitmers table looks photoshopped to me.
Looked that way to me too.
Foldspace' image doesn't have it -
Trump campaign says Whitmer ‘encouraging assassination attempts’ against president with discreet TV message
Digits ‘8645’ were displayed in the background during an appearance on NBC’s ‘Meet the Press’ Sunday
https://www.foxnews.com/politics/trump-whitmer-assassination-attempt-nbc-meet-the-press-interview