Gordie Howe Bridge: Trump Threatens Delay Amid Trade Tensions

CALGARY, AB — U.S. President Donald Trump threatened to block the opening of the C$6.4 billion Gordie Howe International Bridge this week, setting off a firestorm on both sides of the border and drawing sharp commentary from Calgary political observers who see the timing as anything but coincidental.

The bridge — fully funded by Canada and scheduled to begin operations after the U.S. Department of Homeland Security officially designated it as a port of entry on January 30 — was supposed to be a victory lap for cross-border trade. Instead, it's become the latest flashpoint in a trade war that's already cost billions and rattled the automotive sector.

"Surprise, surprise! America's King of Corruption strikes again," wrote Lori Williams, a political analyst at Mount Royal University in Calgary, on X. She called the threat part of a pattern from what she termed "the most blatantly corrupt gangster government in American history."

The Players and the Friction

Trump's threat comes as the United States-Mexico-Canada Agreement (USMCA) faces its mandatory six-year review on July 1, giving the President maximum leverage. The International Emergency Economic Powers Act (IEEPA) — the same legal vehicle Trump used to impose 25% tariffs on Canadian goods last February — would likely be his mechanism for blocking the bridge's opening.

The move has united an unusual coalition of critics. Windsor Mayor Drew Dilkens called Trump's comments "totally unhinged, full of lies and misinformation." Michigan Governor Gretchen Whitmer insisted the bridge "is going to open one way or another," citing its importance to Michigan's auto industry. Even U.S. Senator Elissa Slotkin, a Democrat from Michigan, said blocking the bridge would be "awful for our state's economy."

Canadian Prime Minister Mark Carney emphasized that Canada paid for the entire project upfront — costs to be recouped through tolls — and that ownership is shared with Michigan. The Canadian Chamber of Commerce called a potential blockade "self-defeating."

The Money Behind the Threat

The existing Ambassador Bridge handles over 25% of all U.S.-Canada merchandise trade — more than $390 million daily. That bridge is privately owned by Matthew Moroun, who met with U.S. Commerce Secretary Howard Lutnick shortly before Trump's threat surfaced. The timing has raised eyebrows about whether the President is doing a favor for a competitor.

Past disruptions to the Ambassador Bridge have been estimated to cause daily losses to Canadian GDP in the hundreds of millions. The auto industry, which relies on "just-in-time" supply chains, would take the hardest hit.

The Trade War Context

Trump launched his trade offensive against Canada on February 1, 2025, imposing 25% tariffs on most Canadian goods under the banner of national security. Those tariffs took effect March 4, prompting Canadian retaliation that was later mostly dropped by August. In October, Trump threatened another 10% "fentanyl tariff." In January, he warned of a 100% tariff if Canada pursued a trade deal with China.

Canada's trade surplus with the U.S. narrowed dramatically from $8.4 billion in September 2025 to $4.8 billion by October, while the U.S. recorded a $1.91 billion trade deficit with Canada.

University of Windsor political science professor Jamey Essex noted that while Trump could invoke emergency authority to block the bridge, such a move would likely face legal challenges from multiple stakeholders — including Michigan, which co-owns the crossing.

The USMCA joint review begins in earnest July 1. Until then, the Gordie Howe Bridge sits ready to open, waiting on a President who may or may not want it to.