Mark Shelton | KERA News

Mark Shelton

Doualy Xaykaothao / KERA News

Tea Party organizer Konni Burton of Colleyville didn't wait for her opponent Mark Shelton to concede Tuesday’s Senate District 10 runoff race. Hours before the election was called for Burton, she gave her victory speech to some 150 supporters at the Fort Worth Stockyards. 

Mark Graham / Texas Tribune

The entire state will be watching Tuesday night as Republicans in Tarrant County decide which runoff candidate will continue and compete in the fall for Wendy Davis’ state senate seat.

The Senate District 10 runoff pits tea party candidate Konni Burton against former state representative Mark Shelton.

Mark Graham / Texas Tribune

A Republican running for Wendy Davis’ state senate seat wants to consider changes to the $2 billion fund that lawmakers created to finance water projects. Voters approved the fund when they adopted Proposition 6 last fall.

Mark Graham / Texas Tribune

The two Republicans campaigning to replace state Sen. Wendy Davis, the Fort Worth Democrat who is running for governor, are locked in a tight primary runoff battle.

But it is not just conservatives who are watching the outcome. If the swing district changes hands in November, the Republican Party, which already controls the state Senate, will inch closer to meeting a crucial voting threshold in the upper chamber.

Shelley Kofler / KERA News

Sen. Ted Cruz visited Fort Worth Wednesday night to bestow his endorsement and star power on the Republican runoff campaign of Konni Burton, a tea party candidate who wants to fill the state senate seat Wendy Davis is giving up.

Bill Zeeble / KERA News

Texas Senator Wendy Davis says her top legislative priority is education funding. The newly re-elected lawmaker who beat Republican Mark Shelton says she is not just for public schools, but also for higher education.

Bill Zeeble, KERA

Democrat Wendy Davis held onto her State Senate seat in Tarrant County seat with a tough, tight win over Republican State Rep.  Mark Shelton.

At the top of the Texas ticket, Republican Mitt Romney is expected to win and claim the state’s 38 electoral votes.

Wendy Davis Campaign

Documents requested by KERA show Texas Sen. Wendy Davis of Fort Worth waited two years to comply with a law requiring her to disclose business relationships with lobbyists. Davis’ campaign spokesman, Anthony Spangler, responded in an email, “As soon as she learned of the requirement she amended the report.”

District 10 is one of the most expensive state senate races in Texas history, and in Tarrant County it’s coming down to the wire as Republican Rep. Mark Shelton battles to unseat Democratic State Sen. Wendy Davis.

You've seen the attack ads on TV. State Senator Wendy Davis, a Democrat, and her Republican challenger, Mark Shelton were throwing elbows Thursday during their first debate.