Dallas County Sheriff Lupe Valdez announced Wednesday morning she will run as a Democratic candidate for governor of Texas.

"I'm stepping up, for Texas, for everyone's fair shot to get ahead. I'm in," Valdez proclaimed in a news conference in Austin. "My name is Lupe Valdez. I'm a proud Texas Democrat and I believe in common sense government, that's why I'm running for Texas Governor. I've dedicated my life to defending Texas and I'm not done yet."

The announcement comes after media reports and speculation last week that she would file as a candidate in the Democratic primary.

Valdez signed the official paperwork before taking the podium at the Texas Democratic Party headquarters in Austin.

Former Dallas County Sheriff Lupe Valdez announces she's running for Texas Governor during a news conference at the Texas Democratic Party headquarters in Austin Wednesday.

"We're here to make people's lives better, not hurt them," Valdez said during a news conference announcing her candidacy Wednesday. "Opportunity in Texas ought to be as big as this great state, but for far too long hard working Texans have been left behind, kept out, and frankly attacked for who they are, where they come from and who they love. Texas and businesses are begging for a return of common sense, smart investments and just plain sanity."

Earlier in the day, Valdez submitted her resignation according to the Dallas County Sheriff's Office.

Dallas County Judge Clay Jenkins reacted to the announcement Wednesday via Twitter, thanking Valdez for her leadership.

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Valdez has been the sheriff of Dallas County for 12 years. Her announcement Wednesday makes her the most prominent Democrat in the race after bigger names passed on trying to break Republicans' 22-year hold on the Texas governor's mansion.

Gov. Greg Abbott, who faces no major GOP opponent, filed his bid for reelection earlier this month. On the same day of Valdez's announcement, the governor posted on Facebook that he received the endorsement of the Dallas Police Association PAC, which is right in Valdez's backyard.

"It says that a couple of people have made a decision, but what I have found is when associations make decisions like that, it's not the response of everybody in the association. It’s the response of the leaders," Valdez said.



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Texas hasn't elected a Democratic governor since 1990 and Abbott coasted to a 20-point win just three years ago against Wendy Davis, whose defense of abortion rights catapulted her to national political stardom.

In Valdez, 70, Democrats are now putting up a far different candidate: a one-time migrant worker and Army veteran with more than 40 years in law enforcement. She was Texas' first openly gay sheriff and has publicly clashed with Abbott over her handling of federal immigration detainers in the nation's seventh-largest jail system.

Several other lesser-known Democrats, including the son of a former Texas governor in the 1980s, are also running. But the true Democratic heavyweights took a pass, including Julian Castro, who was President Barack Obama's housing secretary and is a former mayor of San Antonio.

Texas Democrats have faced uncomfortable questions for months about whether they can field a credible gubernatorial candidate. Valdez, a former U.S. Department of Homeland Security agent, says she is a proud Democrat.

Valdez was among about 40 female sheriffs in the U.S., a number that amounts to only about 1 percent of the total sheriff population, according to the National Sheriffs Association.

We look at the ramifications of Rep. Joe Barton's decision not to run for re-election, and the Tarrant County GOP chairman weighs in on his replacement. Dallas County Judge Clay Jenkins talks about Sheriff Lupe Valdez's potential run for governor, and why he thinks she could win. And we discuss the state of the Russia probe, after Michael Flynn's guilty plea on Friday.

Abbott, who is facing re-election for the first time, approaches next year's midterm elections in a better position than few other incumbent governors in the U.S. He has no serious GOP primary challenger and already has more than $40 million in campaign funds socked away.

He remains popular among social conservatives who drive Texas politics and is steering the state through the aftermath of Hurricane Harvey, which could become the costliest national disaster cleanup in U.S. history. He has pressed the White House for billions of dollars in additional recovery aid, and state leaders drew high marks in a recent survey of Harvey-affected residents by the Kaiser Family Foundation.

But Democrats are likely to target two of Abbott's most divisive pursuits: his "sanctuary cities" ban signed in May; and a so-called bathroom bill targeting transgender people, which failed to pass amid backlash from big corporations such as Amazon and Google.

The new "sanctuary cities" law, known as SB4, is Abbott's toughest crackdown on immigration and was partly fueled by Valdez's decision in 2015 that Dallas jails would stop automatically honoring federal immigration detainers for minor offenses. At the time, Abbott responded by threatening to pull $250 million in criminal justice grants to counties that followed Valdez's lead, though Dallas never lost any funds.

Ann Richards was the state's last Democratic governor and 1994 was the last time Democrats won any statewide office in Texas -- the longest losing streak of its kind in the nation.