Former Vice President Joe Biden Joe BidenBiden says voters should choose who nominates Supreme Court justice Trump, Biden will not shake hands at first debate due to COVID-19 Joe Biden should enact critical government reforms if he wins MORE is leading the 2020 Democratic primary field with a 20-point lead over his closest opponent in Texas, according to a new poll.

Biden is backed by 35 percent of likely Texas Democratic primary voters, based on a CNN poll released Wednesday.

Sen. Bernie Sanders Bernie SandersTrump, Biden will not shake hands at first debate due to COVID-19 Sanders tells Maher 'there will be a number of plans' to remove Trump if he loses Sirota reacts to report of harassment, doxing by Harris supporters MORE (I-Vt.) ranks second in the field, with 15 percent support. He’s closely trailed by Sen. Elizabeth Warren Elizabeth WarrenOvernight Defense: Appeals court revives House lawsuit against military funding for border wall | Dems push for limits on transferring military gear to police | Lawmakers ask for IG probe into Pentagon's use of COVID-19 funds On The Money: Half of states deplete funds for Trump's 0 unemployment expansion | EU appealing ruling in Apple tax case | House Democrats include more aid for airlines in coronavirus package Warren, Khanna request IG investigation into Pentagon's use of coronavirus funds MORE (D-Mass.) at 13 percent.

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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 (D), who is leading some polls in Iowa, the first state to choose a nominee, ranks fourth in Texas at 9 percent, based on the poll. Former New York City Mayor Michael Bloomberg Michael BloombergBloomberg rolls out M ad buy to boost Biden in Florida Democratic groups using Bloomberg money to launch M in Spanish language ads in Florida Bloomberg pays fines for 32,000 felons in Florida so they can vote MORE (D), a late entry to the race, closely trails Buttigieg at 4 percent.

Former Housing and Urban Development Secretary Julián Castro, a former mayor of San Antonio, has 3 percent support from likely primary voters, based on the poll.

No other candidate receives more than 2 percent support in the poll.

Texas Democrats will vote on a candidate on Super Tuesday, which falls on March 3. Voters in California, the most populous state in the U.S., will cast a vote the same day.

The race is closer in California, with Biden, Sanders and Warren bunched at the top of the field, based on the CNN poll.

The Texas poll was conducted from Dec. 4 to 8. Pollsters surveyed 327 likely Democratic primary voters. The sample was weighted to reflect Census figures for gender, race, age, education, state region and telephone usage. Its results have a margin of error of 6.6 percentage points.