Oh, NOW I get it!
It's "Mars™, bitches!"
Yes, those are Preznitial M & Ms, made by the Mars Co. Except Bush turns them upside down so that they're W & W's. He was handing the little boxes out to the poor, unwitting children at the Robins A.F.B. last night.
That's right. M & M's beaing the Presidential seal. Restoring dignity to the office.