Buttigieg claims delegate lead in Iowa caucus, with Sanders leading vote, Warren close behind, and Biden in the dust

With only 62% of precincts reporting in, Bernie Sanders has 28,220 votes in the Iowa Democratic Party caucus, followed closely by Pete Buttigieg on 27,030 and then Elizabeth Warren with 22,254. Joe Biden trails a distant fourth on 14,176 votes, only a little ahead of Amy Klobuchar.

Buttigieg, however, has more delegates pledged in the complicated and suddenly very controversial caucus, according to CNN.

After a long night and full day of rancor, confusion and anger over delayed caucus results, the Iowa Democratic Party offered the first round of official results at 5 p.m. EST.

With more than a third of precincts still to report in, the winner is still anyone's guess. But Sanders and especially Buttigieg can be happy with the result. With the vote so divided, Warren's strong third will be a relief to her supporters.

Biden's dismal fourth, however, is the first real sign of trouble for his campaign, otherwise atop opinion polls nationwide in the race to become the Democratic challenger to Trump in the 2020 general election.

Most of the problems stemmed from a caucus reporting app that failed catastrophically on the night.