Boeing has had six years of production problems, safety issues, delivery delays and unhappy buyers of its aircraft. But President Donald Trump’s anger at the delays for the next generation of Air Force One jets could result in a huge blow to what remains of the company’s prestige and finances going forward.

Speaking to reporters aboard one of the two nearly 35-year-old Boeing 747-200 aircraft in current use, Trump said, “We’re looking at alternatives, because it’s taking Boeing too long.”