Sen. Ted Cruz Rafael (Ted) Edward CruzSenate GOP set to vote on Trump's Supreme Court pick before election Supreme Court fight pushes Senate toward brink Crenshaw looms large as Democrats look to flip Texas House seat MORE (R) holds a 10-point lead over his Senate challenger Rep. 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 (D) with just a week left until Election Day, according to a poll released Tuesday.

Cruz leads O'Rourke 52 percent to 42 percent among likely voters in the poll conducted by conservative-leaning Dixie Strategies and CBS 11.

The 10-point margin shows Cruz with an expanded lead from a September poll by the same organizations, which found the incumbent leading by 4 points.

In the poll released Tuesday, Cruz leads by 21 points among men, 59 percent to 38 percent. Among women polled, 49 percent preferred Cruz, while 44 percent backed O'Rourke.

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The incumbent GOP senator holds a sizable 66 percent to 31 percent lead over O'Rourke among white voters surveyed.

Meanwhile, O'Rourke has an advantage among black voters, with 69 percent backing him compared to 31 percent backing Cruz. O'Rourke also leads Cruz among Hispanic voters, 53 percent to 41 percent, according to the poll.

And in the Texas gubernatorial race, the survey showed incumbent Gov. Greg Abbott (R) with a healthy 59 percent to 33 percent lead over his Democratic opponent Lupe Valdez.

The Dixie/CBS poll surveyed 588 likely voters from Oct. 25-26 and has a margin of error of 4.04 percentage points.

While the Texas Senate race has attracted national attention thanks in part to O'Rourke's viral speeches and impressive fundraising totals, a slew of recent polls have shown Cruz with a comfortable lead in the race.

The RealClearPolitics polling index shows Cruz with a 7-point lead in the race.

The national GOP has mobilized to aid Cruz in what has been a reliably Republican state, with President Trump Donald John TrumpBiden says voters should choose who nominates Supreme Court justice Trump, Biden will not shake hands at first debate due to COVID-19 Pelosi: Trump Supreme Court pick 'threatens' Affordable Care Act MORE hosting a campaign rally for the senator last week in Houston.