Here are five things to know about Cornyn as the U.S. Senate race unfolds.

Whoever wins the March primary will become the Republican nominee and face a Democrat. So far, former Dallas Congressman ...

The Republican Primary Senate fight between incumbent John Cornyn and Attorney General Ken Paxton is the most consequential ...

Paxton’s Senate campaign presents a unique challenge for Cornyn. While he has delivered for Texas for decades, the momentum ...

The senator said he was concerned the developers could be discriminating against non-Muslims in violation of federal civil ...

Paxton is close to the president, but Minchillo said Mr. Trump needs Cornyn's help in the Senate to pass his tax and spending ...

DALLAS — Texas Republicans will have their most consequential primary contest in 15 years, when incumbent Sen. John Cornyn ...

Republican Sen. John Cornyn, of Texas, sent a letter Friday to President Trump asking for more help for flood-stricken South ...

Sen. John Cornyn has long been a reliable conservative in Congress. But that may not be enough to get the Texas Republican ...

Texas Attorney General Ken Paxton also requested documents from local officials on the proposed development in Collin County.