Donald Trump fired a shot at Boeing today. Citing cost overruns, he wants to cancel the air force order of “Airforce One”, the specialized plane that jets the president.

Here’s the Tweet.

Boeing is building a brand new 747 Air Force One for future presidents, but costs are out of control, more than $4 billion. Cancel order!

— Donald J. Trump (@realDonaldTrump) December 6, 2016

Boeing is the latest company to come under Trump’s scrutiny as noted by the Wall Street Journal in Trump Says U.S. Should ‘Cancel Order’ for New Air Force One, Citing Costs.