Canadian Prime Minister Justin Trudeau on Monday said President Trump agreed to delay a 25% tariff on Canada’s goods by one month in exchange for stiffer border enforcement and the appointment of a “fentanyl czar” to combat the flow of deadly drugs into the U.S.

Mr. Trudeau, describing the deal on X, announced he would implement a $1.3 billion border plan after a “good call” with Mr. Trump.

The border plan includes “new choppers, technology and personnel, enhanced coordination with our American partners, and increased resources to stop the flow of fentanyl,” Mr. Trudeau said.

He said nearly 10,000 front-line personnel would protect the border, mirroring a commitment Mexico made hours earlier to avoid a 25% tariff on its products.

In exchange, the U.S. is expected to crack down on the flow of high-powered weapons from the U.S. to Mexico.

Mr. Trump’s supporters said the concessions exhibited the president’s ability to wield tariffs in a way that produces results.

Both neighbors were forced to come to the table, and the tariffs might come back if the countries do not follow through on their promises.

“I am very pleased with this initial outcome, and the Tariffs announced on Saturday will be paused for a 30 day period to see whether or not a final Economic deal with Canada can be structured,” Mr. Trump wrote on Truth Social.

Mr. Trudeau said he would list drug cartels as terrorists and launch a Canada-U.S. Joint Strike Force to combat organized crime, fentanyl and money laundering.

Mr. Trump’s detractors, meanwhile, said Monday the president caved to Mexico and Canada and granted a reprieve once he saw a negative reaction on Wall Street.

“The president created this chaos, got spooked by the markets, and immediately folded,” Rep. Richard Neal, Massachusetts Democrat, said. “The stakes are too high for the American people to trust this pause.”

Tariffs are a tax or duty paid by importers on the goods they bring in from foreign markets. Mr. Trump says tariffs are a great way to force companies to return to America or keep their operations in the U.S., employ American workers and create revenue to fund domestic programs.

Presidents can impose tariffs without Congress in certain situations, such as to protect national security or address international emergencies.

The U.S. relied on tariffs as a primary source of government revenue until the federal income tax was imposed in the early 20th century. But tariffs can also result in higher prices for consumers. Foreign countries don’t pay the tariffs directly to the U.S. Treasury.

In many cases, U.S. companies pay the levies, and they might pass on at least some of the cost to consumers through higher prices.

A Yale Budget Lab analysis that found the levies on Canada, Mexico and China would increase prices for the average American family by roughly $1,200 a year.

Democrats were quick to crow about potential cost increases after Mr. Trump campaigned last year against price inflation.

The president “is slapping consumers right where it hurts, their wallets,” said Senate Minority Leader Charles E. Schumer, New York Democrat.

Sen. Ron Wyden of Oregon, the top Democrat on the Finance Committee that has jurisdiction over trade, said no president before Mr. Trump has ever used the International Emergency Economic Powers Act as a justification for sweeping tariffs.

Several Democrats are introducing legislation to clarify that the law doesn’t provide a “blank check” for such authority, he said, while not ruling out other legislative actions.

“Everything is on the table at this point,” Mr. Wyden said.

He also said Mexico has sent previously sent troops to guard to its side of the U.S. souther border without the threat of tariffs.

“It had no impact on fentanyl smuggling,” Mr. Wyden said.

• Tom Howell Jr. can be reached at thowell@washingtontimes.com.

• Lindsey McPherson can be reached at lmcpherson@washingtontimes.com.