Donald Trump does not usually take an interest in the business jet market. On Monday he did, in capital letters, on his own social network, and by Tuesday afternoon Bombardier’s share price had taken a seven per cent hit and a Republican senator from Kansas was publicly asking the White House to think again.

The post was short. “NO MORE SELLING BOMBARDIER IN THE UNITED STATES!” the President wrote on Truth Social. “If they want our Market, they must build here, and stop treating America like a ‘piggyback.’ BUY AMERICAN.” It was reshared by Pete Hoekstra, the US Ambassador to Canada.

What makes this more than another line in an escalating trade war is what the US military currently has on order from the Canadian planemaker. The US Army has bet its entire future manned surveillance fleet on a Bombardier airframe.

The Army has no plan B

The US Army is midway through the biggest change to its airborne intelligence fleet in decades. Under the High Accuracy Detection and Exploitation System programme, known as HADES, it is replacing a fleet of ageing turboprop spy planes with business jets that fly higher, further and faster. The chosen airframe is the Bombardier Global 6500. The designation is ME-11B.

This is not a paper plan the Army could quietly walk away from. It has already divested all of its older turboprop ISR aircraft, and in the interim it has been leaning on contractor-operated jets — also Bombardier-based — to keep the mission going. There is, right now, no non-Bombardier fallback sitting on a shelf.

The Air Force has its own Bombardier fleet: the E-11A Battlefield Airborne Communications Node, a Global Express carrying a relay payload that turns it into a flying switchboard for aircraft and ground units that cannot otherwise talk to each other. That fleet matters less to this argument than it used to, because the Air Force wants to retire it in fiscal 2028 and push the job into space. Senators have already said they are unhappy about that, so it may yet survive.

One important caveat: military and civilian certification in the United States are separate processes, and the administration could simply exempt military aircraft from whatever it does. After Trump’s January 2026 threat to “decertify” Bombardier aircraft, the White House told several outlets that in-service aircraft would be exempt. It did not say whether future military purchases would be.

This started with Gulfstream

Underneath the capital letters is a genuine regulatory grievance. Trump has repeatedly accused Canada of dragging its feet on certifying business jets from Gulfstream, Bombardier’s main rival in the large and super-midsize cabin classes.

Transport Canada did certify five specific Gulfstream business jets in March 2026, but broader type certification has not followed. The sticking point, at least on the G700 and G800, has been a Canadian demand for more fuel system icing testing. On the American side, the FAA had granted Gulfstream a conditional certification that requires full compliance with US fuel icing rules by the end of this year.

Wichita votes too

Bombardier is Canadian, but a good deal of its American business lives in Kansas — and Kansas has a senator who noticed.

Moran said he had contacted the Trump administration to make sure the President was aware of what Bombardier contributes to Kansas, and added that he would keep working to see the company’s manufacturing operations not only remain in the state but grow. Kansas, as he put it, is the Air Capital of the World.

Bombardier’s own response, given to NBC News, made the same point at national scale: American workers at sites in Kansas, Texas, Arizona, Florida, Connecticut, Illinois, Delaware, California, Washington DC and New Jersey, with a direct employment presence in more than 20 states, and a new facility due to open in Fort Wayne, Indiana later this year.

What Bombardier does not do is build a complete aircraft in the United States. That is precisely the gap the President is pointing at.

Bombardier’s own film on its Wichita operation — the American footprint now at the centre of the argument.

He has done this before

Aviation people in Ottawa have seen this film. During Trump’s first term, a trade fight between Bombardier and Boeing pulled in the US government and ended up derailing a proposed Canadian order for F/A-18E/F Super Hornets. Canada eventually bought F-35s instead, years later and after a full competition.

How a sales ban would actually work is nobody’s idea of clear. There may be no legal mechanism for an outright prohibition at all. Washington could instead try decertification, punitive tariffs, or some other economic lever — each of which invites Canadian retaliation and probably litigation. The threat landed the same week Canada’s own retaliatory tariff package took effect, after trade talks collapsed in August.

For now it is a post, not a policy. But it is a post that briefly wiped seven per cent off a planemaker’s value, put a Republican senator in public disagreement with his own President, and left the US Army holding a surveillance programme whose airframe now has a political question mark on it.

Domande frequenti

Can Trump actually ban Bombardier from selling jets in the United States?

It is unclear that any legal mechanism exists for an outright sales ban. US officials have not explained how such a prohibition would work. Washington could instead attempt to decertify Bombardier aircraft, impose prohibitive tariffs, or use other economic measures — each of which would invite Canadian retaliation and probable litigation. As of 9 September 2026 the threat is a social media post, not a policy.

Why is Trump targeting Bombardier?

The stated grievance is Canadian certification of business jets built by Gulfstream, Bombardier’s main US rival. Trump has accused Canada of deliberately slow-walking approvals. Transport Canada certified five specific Gulfstream jets in March 2026 but has not issued broader type certifications, with a demand for additional fuel system icing testing on the G700 and G800 cited as a factor. Trump also threatened to decertify Bombardier aircraft in January 2026, a threat that never materialised.

Which US military aircraft are built by Bombardier?

Two programmes matter. The US Army’s ME-11B, the aircraft of its High Accuracy Detection and Exploitation System (HADES) surveillance programme, is based on the Bombardier Global 6500. The US Air Force’s E-11A Battlefield Airborne Communications Node is based on the Global Express. The Army has also been using contractor-operated Bombardier-based ISR jets during the transition to HADES.

Does Bombardier build aircraft in the United States?

No complete aircraft. Bombardier has a substantial US presence centred on Wichita, Kansas, where Senator Jerry Moran says it supports a local workforce of more than a thousand people, and the company lists sites in Kansas, Texas, Arizona, Florida, Connecticut, Illinois, Delaware, California, Washington DC and New Jersey with a direct employment presence in more than 20 states. A new facility in Fort Wayne, Indiana is due to open later in 2026. Final assembly, however, is not done in the United States — which is exactly the point Trump is pressing.

What happened to Bombardier’s share price?

Bombardier stock fell by around seven per cent after Trump’s Truth Social post, according to Bloomberg, and had partly recovered by the following afternoon.

Has Trump gone after Bombardier before?

Yes. During his first term, a trade dispute between Bombardier and Boeing drew in the US government and ultimately upended a proposed Royal Canadian Air Force order for F/A-18E/F Super Hornets. Canada later ran a full competition and selected the F-35 instead.

Sources: Truth Social; TWZ; NBC News; Bloomberg; Aviation Week; CTV News; NPR.