I would suggest fear is the motivation. There is fear of disruption and possibly worse.
The event may occur during the new war. The moonbats might be in full attack mode. Protection was determined to be not possible
I wondered if something coming down the pipes...a war or another deep economic “dump” might explain the move.
IMO, the move is to avoid a chicago convention replay of 68 wherein the dem supportors were front and center on live TV every night causing a huge uproar which helped them lose the 68 election.
My second thought is from Camp David, His Excellency will be able to judiciously let out tidbits favorable to his negotiation actions. In the past 3 years, he has gone from a novelty to the Euros et al to someone they just about all loathe. The sessions with with the empty suit, the tax cheat, and Bernaki the bank shill is not something Oturd’s handlers want anyone to get a glimpse of especially when the subject of removing the dollar from its centerpiece in world currencies comes up.