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Trump Threatens Mexico With Tariffs Over Water Treaty Dispute

President Trump accuses Mexico of violating the 1944 water treaty and warns of escalating trade penalties if obligations are not met.

A drone view of El Carrizo dam, after the U.S. announced it will deny for the first time a request by Mexico to send water through a special delivery channel from the Colorado River to Tijuana, due to shortfalls in Mexico's water deliveries under the water sharing treaty signed in 1944 by both nations, in Tecate, Mexico, March 21, 2025. REUTERS/Jorge Duenes
A drone view of El Carrizo dam, after the U.S. announced it will deny for the first time a request by Mexico to send water through a special delivery channel from the Colorado River to Tijuana, due to shortfalls in Mexico's water deliveries under the water sharing treaty signed in 1944 by both nations, in Tecate, Mexico, March 21, 2025. REUTERS/Jorge Duenes
View of pipe system of El Carrizo dam, after the U.S. announced it will deny for the first time a request by Mexico to send water through a special delivery channel from the Colorado River to Tijuana, due to shortfalls in Mexico's water deliveries under the water sharing treaty signed in 1944 by both nations, in Tecate, Mexico, March 21, 2025. REUTERS/Jorge Duenes
View of El Carrizo dam, after the U.S. announced it will deny for the first time a request by Mexico to send water through a special delivery channel from the Colorado River to Tijuana, due to shortfalls in Mexico's water deliveries under the water sharing treaty signed in 1944 by both nations, in Tecate, Mexico, March 21, 2025. REUTERS/Jorge Duenes

Overview

  • President Trump has threatened tariffs and sanctions against Mexico, citing its failure to deliver 1.3 million acre-feet of water owed under the 1944 U.S.-Mexico Water Treaty.
  • Mexico has delivered less than 30% of its required water obligations during the current five-year cycle, which ends in October 2025, according to official data.
  • Mexican President Claudia Sheinbaum attributes the shortfall to a prolonged three-year drought, stating that Mexico is complying to the extent water is available.
  • Trump alleges that the water shortfall is harming Texas farmers, including the closure of the state's only sugar mill, and has halted water shipments to Tijuana in response.
  • Negotiations between the two nations continue, with Mexico proposing short-term measures to address the deficit while facing internal tensions over water allocation.