Former Vice President Joe Biden Joe BidenPelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Hillicon Valley: Subpoenas for Facebook, Google and Twitter on the cards | Wray rebuffs mail-in voting conspiracies | Reps. raise mass surveillance concerns Fox News poll: Biden ahead of Trump in Nevada, Pennsylvania and Ohio MORE leads the field of Democratic nominees in Texas while home-state candidate Beto O'Rourke Beto O'RourkeJimmy Carter says his son smoked pot with Willie Nelson on White House roof O'Rourke endorses Kennedy for Senate: 'A champion for the values we're most proud of' 2020 Democrats do convention Zoom call MORE is in second, according to a poll released Monday.

Biden is the first choice of 23 percent of likely Democratic voters in the Lone Star State, according to the University of Texas/Texas Tribune Poll.

O'Rourke, a former congressman who made a strong upset bid for Sen. Ted Cruz Rafael (Ted) Edward CruzThe Hill's Morning Report - Sponsored by Facebook - Trump previews SCOTUS nominee as 'totally brilliant' Cruz blocks amended resolution honoring Ginsburg over language about her dying wish Trump argues full Supreme Court needed to settle potential election disputes MORE's (R) seat in 2018, sits in second in the Democratic field with 15 percent support.

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Sens. Elizabeth Warren Elizabeth WarrenHillicon Valley: Subpoenas for Facebook, Google and Twitter on the cards | Wray rebuffs mail-in voting conspiracies | Reps. raise mass surveillance concerns On The Money: Anxious Democrats push for vote on COVID-19 aid | Pelosi, Mnuchin ready to restart talks | Weekly jobless claims increase | Senate treads close to shutdown deadline Democratic senators ask inspector general to investigate IRS use of location tracking service MORE (D-Mass.) and Bernie Sanders Bernie SandersThe Hill's Campaign Report: Trump faces backlash after not committing to peaceful transition of power Bernie Sanders: 'This is an election between Donald Trump and democracy' The Hill's 12:30 Report: Trump stokes fears over November election outcome MORE (I-Vt.) are statistically tied with O'Rourke at 14 percent and 12 percent, respectively.

No other candidate placed in double digits, with South Bend., Ind., Mayor Pete Buttigieg Pete ButtigiegBillionaire who donated to Trump in 2016 donates to Biden The Hill's Morning Report - Sponsored by Facebook - GOP closes ranks to fill SCOTUS vacancy by November Buttigieg stands in as Pence for Harris's debate practice MORE getting 8 percent support and Sen. Kamala Harris Kamala HarrisHundreds of lawyers from nation's oldest African American sorority join effort to fight voter suppression Biden picks up endorsement from progressive climate group 350 Action 3 reasons why Biden is misreading the politics of court packing MORE (D-Calif.) receiving 5 percent.

The other Texan in the race, former Housing and Urban Development Secretary Julián Castro, polled at 3 percent.

“After four months of campaigning, Castro’s numbers remain unchanged in Texas,” Joshua Blank, manager of polling and research for the Texas Politics Project, said.

“And the top five candidates have 75 percent of the vote in Texas.”

O'Rourke's strong result in his home state comes as his numbers have struggled nationally.

A RealClearPolitics average of national polls has O'Rourke sitting in sixth place in the Democratic primary with just 3.6 percent of the vote.

The University of Texas/Texas Tribune surveyed 483 likely Democratic primary voters between May 31-June 9. The sample has a margin of error of plus or minus 4.46 percentage points.