In Tuesday's primary runoff election, Texas voters cast ballots in six Republican congressional races across the state.

Attorney Lizzie Pannill Fletcher defeated activist Laura Moser in a Democratic congressional primary that drew national attention. Meanwhile, former Air Force Intelligence Officer Gina Ortiz Jones easily won her runoff for the 23rd Congressional District.

How West Houston’s Democratic voters decide in the 7th Congressional District runoff on Tuesday will have outsized implications for national Democrats' optimism and tactics in the fall.

While little separates veteran Dan Crenshaw and state Rep. Kevin Roberts on policy, their Republican runoff has grown nasty as they argue over past Facebook posts and accusations of mudslinging. The winner is likely to end up in Congress.

Seven Democrats filed to run against U.S. Rep. Pete Sessions, a Dallas Republican. The race is now down to Colin Allred and Lillian Salerno – two former Obama administration officials who argue Sessions is vulnerable. 

U.S. Rep. Joe Barton's startling retirement amid unsavory headlines — coupled with a turbulent national political environment — makes the open-seat race to replace him uncharted territory for candidates from both parties.

U.S. Rep. Mac Thornberry, the highest-ranking House Republican – and Texan – on national defense issues, said President Donald Trump should have given "our European allies a few more months to strengthen the deal."

Jackson's nomination went into free fall as reports emerged that alleged Jackson led a hostile work environment, over-prescribed drugs and possibly drank on the job.

Tom Steyer, one of the biggest Democratic donors in the country, openly mulled spending on O'Rourke's behalf via his environmental super PAC, NextGen America.

Cruz, a Texas Republican, is at the forefront of revamping the U.S. Senate's internal sexual harassment policies. Last year he joined a New York Democrat in introducing legislation proposing such an overhaul.

Democrats took a shellacking during President Barack Obama's first midterm election in 2010, and U.S. Rep. Solomon Ortiz's loss was one of the biggest surprises. Eight years later, some are wondering if Republicans have some overly confident incumbents unprepared for a potential "blue wave" in November.

A new Quinnipiac University poll of Texas voters finds 47 percent support Cruz, the Republican incumbent, while 44 percent back O'Rourke, an El Paso Democrat.

U.S. Sen. Ted Cruz's campaign will report raising $3.2 million in the first three months of this year, less than half the $6.7 million his Democratic rival has said he will report for the period.

The decision could spur Republicans in Texas to seek leadership positions. Fundraising in the state and elsewhere could also be affected. 

Both U.S. Senators from Texas questioned the embroiled Facebook CEO about the content on the social networking site. Cruz accused Zuckerberg of engaging in "bias and censorship."