Mexico is behind on treaty-bound water deliveries to the United States, and the US ratcheting up the pressure.

Under the 1944 treaty, Mexico must send 1.75 million acre-feet of water to the U.S. from the Rio Grande every five years ...

Mexico's federal government is negotiating with its northern states to send more water to the United States, the country's ...

Under the treaty, Mexico is to pay the United States 1.75 million acre-feet of water to the Rio Grande over a five-year cycle ...