Trump Threatens to Double Tariffs on Mexico Over Migrant Caravans

Tariff threat follows southern Mexico caravan

November 12, 2026, 7:24 a.m. Central time.

President Donald Trump issued an abrupt economic ultimatum to Mexico early Thursday, warning that import tariffs on Mexican goods will be doubled immediately unless authorities south of the border halt newly forming migrant caravans.

The threat was delivered in a 5:50 a.m. post on Truth Social, where Trump tied a fresh surge of northbound migration directly to the outcome of last week's U.S. midterm elections. Trump asserted that foreign countries were attempting to exploit perceived political shifts in Washington following Democratic gains in Congress, according to Fox News.

“Here we go again!” Trump wrote. “With the perceived loss by the Republicans in the Midterms - I WAS NOT ON THE BALLOT- the INVASION of our Country is taking place again. Huge CARAVANS are forming and beginning their illegal march through Mexico.”

Truth Social ultimatum and economic stakes

The president made clear that trade penalties would serve as immediate leverage. “MEXICO MUST STOP THEM, NOW, and if they do not do so, the Tariffs on Mexico will be IMMEDIATELY DOUBLED,” Trump stated, adding: “There will be no leniency!”

Trump noted that Mexican leadership, U.S. Border Patrol, Immigration and Customs Enforcement, and Texas state officials had all been formally notified of the directive, as reported by Anadolu Agency.

Financial markets reacted quickly to the morning post. The Mexican peso dipped to session lows against the U.S. dollar as currency traders weighed the prospect of steep new duties disrupting cross-border trade under the United States-Mexico-Canada Agreement (USMCA), according to market reporting from Quartz.

Border enforcement and diplomatic pressure

The administration’s renewed tariff rhetoric followed reports that a group of roughly 1,500 migrants, primarily from Central and South America, set out on foot from Tapachula in Chiapas near Mexico's southern border with Guatemala.

Migrant advocacy groups reported that travelers hoped shifting leadership in the U.S. House of Representatives might ease border restrictions or lead to renewed asylum hearings. However, incoming federal border coordinator Tom Homan and congressional Republicans have maintained that enforcement posture remains unchanged regardless of legislative counts.

Mexican President Claudia Sheinbaum’s administration has previously stressed that Mexico cooperates closely on regional migration management through containment operations and job programs, while cautioning that unilateral tariffs hurt businesses and consumers in both nations.

Timeline of the tariff dispute

November 4–10, 2026: U.S. midterm elections conclude with Democratic gains in Congress. Migrants gather in southern Mexico.

November 11, 2026: A caravan of approximately 1,500 people begins walking north from Tapachula, Chiapas.

November 12, 2026: Trump posts a 5:50 a.m. ultimatum threatening to double tariffs on Mexico; the Mexican peso declines on currency exchanges.

Where the caravan mobilized

The star marks Tapachula, Chiapas, in southern Mexico, where the northward group organized.

Map data: © OpenStreetMap contributors, ODbL.

Sources and visual credits

Fox News: tariff warning and caravan reporting · Quartz: economic impact and peso reaction · Anadolu Agency: Truth Social ultimatum

Header and thumbnail visual: Newstro editorial newsroom section graphic.