US Democratic presidential candidate Pete Buttigieg narrowly won the chaotic Iowa caucuses, collecting 14 delegates, ahead of Bernie Sanders with 12, according to the state party on Sunday.
The delayed results were marred by multiple technical issues, and the outcome has been subject to complaints and demands for a "recanvassing" check of the vote.
Buttigieg, the former mayor of South Bend, Indiana, and Sanders, the leftist senator from Vermont, were separated by a razor-thin margin in the caucuses held on Monday.
"You can expect us to be asking the Iowa Democratic party for a recanvass of the discrepancies that we have identified and found for them," Sanders campaign manager Faiz Shakir told CNN on Sunday. "It's been handled incompetently from our perspective."
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