The head of the Democratic Party in the US state of Iowa has resigned after last week’s caucus was plagued by technical issues, questions over accuracy and delays.
In his resignation letter, Troy Price said that “the precinct and satellite caucus meetings themselves went well”.
But he conceded that the process of reporting results was “unacceptable”.
Pete Buttigieg, the former mayor of Southend Indiana, won with a narrow 0.1% victory over Vermont Senator Bernie Sanders in terms of delegates, while Mr. Sanders won the popular vote.
Since then, the Sanders campaign has asked for a “recanvassing” check of the vote.
Iowa Democratic leaders will elect a new local leader on Saturday.
In US elections, the Iowa caucus is the important first step in choosing the challenger to the incumbent president.
Primaries and caucuses are a string of nationwide state-by-state votes, which culminate in the Democratic candidate being chosen at the party convention in July.
After the chaos in Iowa, the Democrats held a successful primary in New Hampshire on Tuesday, with Senator Sanders winning the vote, closely followed by Mr. Buttigieg.