Former Vice President Joe Biden Joe BidenThe Memo: Warning signs flash for Trump on debates Senate Republicans signal openness to working with Biden National postal mail handlers union endorses Biden MORE has won the Oklahoma presidential primary, adding to a string of victories for the Democratic candidate on Super Tuesday.

The Associated Press called the race for Biden shortly after 9 p.m. ET. Polls closed at 8 p.m. ET.

Biden was competing against multiple rivals in the Sooner State, such as former New York City Mayor Mike Bloomberg, who was on the ballot for the first time after sitting out the first four nominating contests.

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Biden also beat out Sen. Elizabeth Warren Elizabeth WarrenNo new taxes for the ultra rich — fix bad tax policy instead Democrats back away from quick reversal of Trump tax cuts It's time for newspapers to stop endorsing presidential candidates MORE (D-Mass.), who was born in Oklahoma and frequently references the state on the campaign trail.

Polling ahead of the state’s primary was scant; one poll showed Biden in the lead while another had him in second place behind Bloomberg.

Bloomberg and Sen. Bernie Sanders Bernie SandersSenate Republicans signal openness to working with Biden Hillicon Valley: DOJ indicts Chinese, Malaysian hackers accused of targeting over 100 organizations | GOP senators raise concerns over Oracle-TikTok deal | QAnon awareness jumps in new poll Schumer, Sanders call for Senate panel to address election security MORE (I-Vt.) were both polling in double digits as recently as last month. Sanders won Oklahoma by about 10 points in the 2016 primary against former Secretary of State Hillary Clinton Hillary Diane Rodham ClintonBarr criticizes DOJ in speech declaring all agency power 'is invested in the attorney general' Virginia Democrat blasts Trump's 'appalling' remark about COVID-19 deaths in 'blue states' The Hill's Campaign Report: Biden asks if public can trust vaccine from Trump ahead of Election Day | Oklahoma health officials raised red flags before Trump rally MORE.

Oklahoma is one of 14 states voting on Super Tuesday. It will award 37 pledged delegates in the race for the Democratic nomination.

Updated at 9:22 p.m.