Democratic presidential candidates Pete Buttigieg and Bernie Sanders were neck and neck Thursday in the chaotic Iowa caucuses with 100 percent of precincts reporting but no winner declared following technical issues.
The tally comes hours after the Democratic party chairman ordered a review of the results following technology problems that prevented a complete vote count in the United States' first nominating contest Monday and some doubts were raised about the accuracy of the process.
Sanders, the leftist senator from Vermont, and Buttigieg, the former mayor of South Bend, Indiana, are separated by a razor-thin margin in the final results, which come three days after the caucuses.
Democratic Party chairman Tom Perez, however, stepped in earlier Thursday, demanding a review of the caucuses.
"Enough is enough," Perez said on Twitter. "In order to assure public confidence in the results, I am calling on the Iowa Democratic Party to immediately begin a recanvass."
Perez said it would involve an examination of the results from each caucus site rather than a full recount.
With returns in from all of the 1,765 precincts in Iowa, Buttigieg was leading by 26.2 percent to Sanders's 26.1 percent in the delegate totals.
Massachusetts progressive Senator Elizabeth Warren was next with 18.0 percent followed by former vice president Joe Biden with 15.8 percent and Minnesota Senator Amy Klobuchar with 12.3 percent.