Why do you scream ?
We know that USAF VIP 747 are called VC-25.
According to Scramble.nl site, it will be operated by 65th AS/15th ABW, Hickam AFB, PACAF. I don't think it will be a presidential plane.
The President fly with VC-32 (757-200) for example, when the airport can't receive the VC-25.