U.S. Sens. Ted Cruz and John Cornyn want to limit the U.S.’s engagement with Mexico after the country failed to deliver water to Texas under a 1944 international water treaty. The Texas senators filed legislation Thursday that would limit the U.S. from sending Mexico future deliveries of water and would allow the U.S. president to stop engaging with Mexico in certain business sectors that benefit from U.S. water. The treaty requires the U.S. to deliver 1,500,000 acre-feet of water from the Colorado River to Mexico every year.