The chairman of the US Democratic National Committee (DNC) has called for a review of the vote totals in the contest to pick a presidential nominee in Iowa, after an array of problems.
His comments came just before the final results, which were three days later than expected amid technical problems and reporting delays.
“Enough is enough,” said Tom Perez. He said he wanted to ensure accuracy.
The Iowa Democratic Party said it had no plans to carry out an audit.
Final results eventually came late on Thursday local time, with the party declaring Pete Buttigieg the winner by a small margin.
Earlier, with 97% of precincts reporting, the Associated Press news agency said it was unable to declare a winner, citing the tight margin of a fraction of a percentage point and the “irregularities” of the process.
Meanwhile Bernie Sanders, who was practically neck-and-neck with Pete Buttigieg, declared a “very strong victory”.
The results gave Mr Buttigieg a lead of 0.1% in the number of delegates selected ahead of Mr Sanders, although Mr Sanders has a greater share of the popular vote.
Speaking in New Hampshire, where he is campaigning for the upcoming primary on Tuesday, Mr Sanders said: “When more than 6,000 more people come out for you in an election than your nearest opponent, we here in northern New England call that a victory.”
Mr Buttigieg had already declared victory for himself on Monday, before any of the results were released.
The party blames the delay in results on a coding error in an app, called Shadow, which is being used for the first time to report the votes.
On Twitter, Mr Perez said a recanvass would not involve a recount of all votes, but a “review of the worksheets from each caucus site to ensure accuracy”.
While Mr Perez holds sway within the national party organisation, only the Iowa Democratic Party (IDP) has the power to call for a recanvass of votes.
In a statement, IDP chair Troy Price said he acknowledged that “reporting circumstances on Monday night were unacceptable”.
