Boeing reports that it is still on track to deliver the next U.S. Air Force One aircraft in 2028, even as reported program costs increase. The program, which is intended to replace the presidential jets currently in service since 1990, is described as having grown to more than $5 billion. The two sources agree that the aircraft are part of the Air Force One replacement effort and that the updated cost picture reflects higher spending since earlier estimates. The reporting also frames the schedule goal—delivery by 2028—as continuing despite the cost growth. No details are provided in the supplied excerpts about the reasons for the cost rise, changes to contract terms, or adjustments to the timeline beyond the statement that delivery remains on track. The information presented here therefore focuses on the program’s overall scale, the replacement purpose of the aircraft, the 2028 delivery target, and the fact that total program costs have exceeded $5 billion.