The long and short of it all is: Jill Biden Done It
I've racked my brain as to why there are so many disconnected and random facts flung out and floating around. They don't make sense. You posted several, there are a ton more. Bottom line is they are so desperate at this point, especially Jill facing the prospect of giving up the high life, because of her husband's deteriorated mental acuity.
I'll mostly post URLs, with my commentary, so you can see the sources. in most articles you just need to read the first few paragraphs. The crux is this: Jill Biden hastily agreed to give a 5 minute speech, without Q&A 3 days before the assassination attempt, which diverted resources from Trump security detail at the last minute.
August 24, 2022 https://www.whitehouse.gov/briefing-room/statements-releases/2022/08/24/statement-from-president-biden-on-the-appointment-of-kimberly-cheatle-to-be-the-next-director-of-the-united-states-secret-service/
July 10, 2024: https://penncapital-star.com/briefs/jill-biden-coming-to-pittsburgh-on-saturday-to-attend-italian-sons-and-daughters-of-america-dinner/
July 15, 2024 https://www.msn.com/en-us/news/politics/secret-service-director-kim-cheatle-landed-job-after-push-by-jill-biden-s-office-sources-say/ar-BB1q1Gxj
July 18, 2024 https://www.thegatewaypundit.com/2024/07/wayne-root-nobody-can-be-this-dumb-not/
Scroll down to section titled: The former and future President of the United States was not given a “full protection package.” Think about that.
In other words, they did not have time to stress test their story-lines and polish it up ahead of time. They are this deranged and dangerous at this point.