President Trump said in a social media post that he would impose tariffs and sanctions on Mexico if it does not comply with a treaty from 1944 to provide water to South Texas.

The country raised tariff rates against the U.S. from 85 percent to 125 percent Friday morning, following Thursday’s confirmation from the Trump administration that it was placing tariffs of 145 percent on China—125 percent as a reciprocal measure, plus an additional 20 percent because Trump thinks Beijing isn’t doing anything about fentanyl.