Seems like something an old Sherlock Holmes would do.

• It came on the heels of a court case that said Trump could only build his ballroom if there was a legitimate security concern (and all the right wing media had posts ready for ballroom support)
• He (Trump) had never attended before now
• The response from the SS seemed… lacklustre at best.
• Karoline Leavitt said that everyone should watch because there would be shots fired.
• He (the shooter) was entirely ineffectual.
• Right wing women are so botox’ed that no one could see them being upset; right wing men were standing behind their wives.

Personally… fake is not exactly the answer, but it’s oh so convenient, and given that people were sending in tips about him before this, I suspect that if they hadn’t wanted this to happen, they’d have done security normally and he’d have been removed from the premises before he shot. But maybe I’m just underestimating how bad the US government’s security has become since they fired so many people.