Saying that Mexico is violating the terms of a 1944 water treaty, federal lawmakers from Texas filed legislation Monday that they hope will compel the United States' southern neighbor to meet its obligations.

A water war between the U.S. and Mexico dominates headlines amid a record drought. But some experts caution that a larger issue is boiling beneath the surface: the mining of unregulated transnational aquifers.

The Rio Grande Regional Water Authority has hired a PR firm to help urge the federal government to mandate that Mexico deliver water to the U.S. under a decades-old treaty. Legal experts say such conflicts would continue if the treaty isn't amended. 

The immigration reform bill slated to go before the U.S. Senate next week is full of loopholes that fail to secure the border or address legal immigration, U.S. Sen. Ted Cruz wrote in a letter to his colleagues on Tuesday. 

U.S. Rep. Filemon Vela praised a think tank report on border security released Thursday for moving beyond using apprehensions of people crossing illegally as a measurement.

Texas is showing how unique it is when it comes to matters of immigration. Statistics say it has more undocumented immigrants in detention centers than any other state. And organizers of a virtual march for immigration reform say the state is the perfect spot to host related events.

If current drought conditions persist, farmers in Willacy and Hidalgo counties who receive water from the Delta Lake Irrigation District in South Texas will have to look for other options in June. 

Details of a sweeping federal immigration reform bill emerged Tuesday. The plan includes a path to citizenship that lasts more than a decade, beefed-up border security and an expanded visa system.

The Texas House on Thursday voted to formally ask the U.S. State Department to apply pressure on the Mexican government to release water owed to Texas under the terms of a treaty signed in 1944.

Discussions on gun control are replete with arguments about background checks, ammunition limits and issues related to mental-health awareness. Gun running to Mexico, however, remains a key concern, a new study shows.

Gov. Rick Perry on Monday demanded that Immigration and Customs Enforcement Director John Morton provide details about the release of thousands of undocumented immigrants from detention centers. 

“The border is safe.” That’s a common refrain from lawmakers who say the unprecedented buildup of law enforcement in the region has netted positive results. But as sequestration looms, lawmakers say federal inaction could put that reality in jeopardy.

Two years after legislation to ban "sanctuary cities" was made a top priority, immigration legislation is barely discussed at the state Capitol. It’s put some lawmakers in a weird spot — especially when some of their own recently came out in support of what’s  a no-no in politics — amnesty. 

Democratic Texas House members on Wednesday filed an immigration resolution that could serve as a litmus test for Republican support for reforms being suggested at the national level.  

El Paso again ranks as the safest city of its size, according to a report released the same day that Homeland Security Secretary Janet Napolitano visited the border city. 

President Obama on Tuesday offered his own plan for immigration reform, and his proposal earned both praise and criticism in Texas.

Some Mexican and American officials hope that the gun control debate might spur laws that curb the flow of illegal weapons over the United States' southern border. But others say that changing gun laws in the U.S. would not change gun behavior in Mexico.

Republicans and Democrats say the appointment of Eduardo Medina Mora as Mexico's ambassador to the U.S. opens an opportunity for the nations to forge a new relationship.