Former South Bend, Ind., Mayor Pete Buttigieg Pete ButtigiegBogeymen of the far left deserve a place in any Biden administration Overnight Defense: Woodward book causes new firestorm | Book says Trump lashed out at generals, told Woodward about secret weapons system | US withdrawing thousands of troops from Iraq A socially and environmentally just way to fight climate change MORE 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.) are in a virtual tie in the Iowa Democratic caucuses, according to the latest results, released overnight.

With 97 percent of precincts now reporting, Buttigieg has 26.2 percent of state delegate equivalents and Sanders has 26.1 percent, a difference of 3 out of 1,097 votes.

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.) trails with 18.2 percent.

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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 15.8 percent, and Sen. Amy Klobuchar Amy KlobucharEPA delivers win for ethanol industry angered by waivers to refiners It's time for newspapers to stop endorsing presidential candidates Biden marks anniversary of the Violence Against Women Act, knocks Trump and McConnell MORE (D-Minn.) has 12.2 percent.

No other Democratic presidential candidates broke the double-digit level in state delegate equivalents in the caucuses, which were marred by technical problems.

Sanders leads the popular vote, according to the results, getting 26.5 percent compared to Buttigieg's 25 percent. That translates into a difference of about 2,500 votes.

Warren is also in third place in the popular vote in Iowa, getting more than 18,000 votes.

Buttigieg had held a narrow lead over Sanders in earlier tallies of state delegate equivalents.

The chairman of the Iowa Democratic Party, Troy Price, said in a call with state party officials Wednesday night that full results should be released by Thursday morning, according to CNN.

A person on the call also told the network that Price promised an independent review.

Marty Johnson contributed to this report, which was last updated at 7:48 a.m.