Biden staff prepped him on how to enter, exit fundraiser room: report

It's not uncommon for politicians and prominent people to receive briefing beforehand about logistics and proper protocol for events they will be attending. This could be to ensure that everything runs smoothly or to avoid any unfortunate mishaps or faux pas due to unfamiliarity with the venue or schedule of the event. As per the report, President Joe Biden's staff prepared him on how to enter and exit the room for a fundraiser event — things like where the doors are situated, the layout of the room, which exit to use after his speech, etc.