"I'm very confident that we will be able to carry out a successful caucus," Tom Perez insisted.
The vote was so close that there are calls to re-canvass, but it looks like former South Bend, Indiana, Mayor Pete Buttigieg will take the most delegates out of Iowa.
Multiple news outlets reported over the past several days inconsistencies in the calculations scribbled on Iowa caucus worksheets.
Citing a "coding error" and "irregularities" discovered after a voting app malfunctioned during Monday's Iowa caucuses, the Iowa Democratic Party released 62 percent of the results Tuesday but offered no set time for the release of the rest of the information.
Amid delayed Iowa caucus results, Pete Buttigieg said he was going to New Hampshire "victorious," which prompted people to call him "#MayorCheat" on social media.
"We're asking people in Iowa and across the country: Don't look away," said RAICES Chief Advocacy Officer Erika Andiola.
Julian Castro told MSNBC's Rachel Maddow the presidential nomination process involving caucuses in Iowa and New Hampshire "doesn't make any sense."
Curbelo called the caucus' rejection of his bid to become a member "shameful and deplorable."
Clinton celebrated her presumptive role as the first woman in U.S. history to capture the nomination for a major party.
Clinton encourages immediate unity in the Democratic Party to defeat Donald Trump in the general election.
Tuesday effectively will mark the end of the presidential primary season.
Sanders needs to win 66 percent of remaining delegates to outpace Clinton in the race to be the Democratic nominee for president.
The Wisconsin primary kicks off April's nominating contests.
Arizona is the biggest prize for both parties Tuesday night.
Residents in three Western states are casting their picks as national security once again is a hot-button issue.
The forum is the first since Donald Trump scored multi-state wins on Super Tuesday.
March marks the second month in the presidential election's primary season.
The Senate minority leader is the highest-ranking Democrat to throw his support behind Clinton.
The presidential nominating events will spread to the West and South this weekend.
In a Wednesday email, the candidate accused the media of spreading "false" and "misleading" information.
"I am by no means even thinking of throwing in the towel," the retired neurosurgeon said after his fourth-place finish in Iowa.
It's 2013, and Hillary and Jeb were going to skate to their parties' nominations. Didn't work out that way.