President Donald Trump is scheduled to deliver remarks at the Andrew W. Mellon Auditorium in Washington, D.C., at 10:00 a.m. EDT on September 29, 2026, following White House planning guidance issued four days earlier. Similar past appearances at the venue have centered on economic initiatives such as the Trump Accounts program for newborns, private-sector partnerships, and manufacturing or investment announcements. Prediction markets tracking specific phrases reflect trader focus on whether the president will reference midterms, manufacturing, or terms like "fake news," consistent with patterns in recent addresses on policy priorities, regulatory reforms, and administration achievements. No major new developments have altered the event timeline in the past week.