Article continues below advertisementDonald Trump couldn't stop boasting over his one-day stint as a fast food cook while speaking at the McDonald's Impact Summit in Washington, D.C., on Monday, November 17.The president was there to talk about making food more affordable, but he went on a tangent and reminisced over the gig, admitting things aren't as simple as they seem in the kitchen.Article continues below advertisementSource: megaDonald Trump bragged about being the 'first former McDonald's fry cook ever to become president.