This article was first published by The Texas Tribune, a nonprofit, nonpartisan media organization that informs Texans — and engages with them — about public policy, politics, government and statewide issues.Sign up for The Brief, The Texas Tribune’s daily newsletter that keeps readers up to speed on the most essential Texas news. Three migrants drowned in the Rio Grande, near the Eagle Pass park that Texas troopers have taken control over, U.S. Rep. Henry Cuellar (D-TX) said in a written statement on Saturday. State officers and National Guard members have been denying U.S. Border Patrol agen…