Iowa caucus live updates: Buttigieg, Sanders reach virtual tie with 100 percent of results released

The first-in-the-nation voting state was thrown into disarray late Monday after the Iowa Democratic Party delayed releasing results.

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The Iowa Democratic Party announced the release of 100 percent of the state caucus results Thursday night, showing Pete Buttigieg and Bernie Sanders neck and neck in their lead over the rest of the Democratic candidates. The results could change as more data is examined, and NBC has not called a winner in the race.

The Iowa Democrats' announcement comes after Democratic National Committee Chair Tom Perez called on state party officials to recanvass the results of Monday's caucuses amid growing concerns about their accuracy (see NBC News' review of the results).

Caucusgoers gathered at nearly 1,700 sites across Iowa on Monday night to tally support for their preferred candidates only for the count to be thrown into disarray when what Iowa Democrats called "inconsistencies" delayed the reporting of results.

The state has 41 pledged delegates up for grabs, and the high-stakes contest traditionally plays a major role in determining who is a legitimate contender in the race. Candidates in the crowded Democratic field needed to meet a threshold of support (at least 15 percent of attendees at most caucus sites) to become viable, or they saw supporters move on to someone else.

Highlights from the Iowa caucuses

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Warren says there's a 'tight 3-way race' in Iowa but she's 'feeling good'

Warren spoke to supporters in New Hampshire on Tuesday and addressed the situation in Iowa.

“I’m not disappointed," she said. "We came out of Iowa knowing it’s a tight 3-way race at the top. Three of us. Buttigieg, Bernie and I will divide up most of the delegates in Iowa. That’s important to know.”

"I'm feeling good," she added.

Bloomberg skips Iowa and N.H. for Michigan, 'a state we have to win in November'

Yang: 'This race is a muddled mess,' but 'opportunity for us is growing'

McDaniel calls Iowa 'a debacle,' Cruz says it's 'nuts'

Sen. Ted Cruz, R-Texas, winner of the 2016 GOP Iowa caucuses, told "Fox and Friends" on Tuesday that the current confusion surrounding Monday's Democratic caucuses in Iowa "is nuts."

"You would be frustrated, you would be angry," Cruz said, speaking as to how a candidate would feel as a result of Monday's fallout. "These candidates have spent months, if not over a year, busting their rear ends. I mean, knocking on doors, you know, I feel bad really for the volunteers. I mean, going into an Iowa caucus, it is a labor intensive, you've got people — we had people in 2016 who moved up from Texas, and moved from states all over the country to go to Iowa and were out in the snow, knocking on doors."

On the Fox Business Network, Republican National Committee Chairwoman Ronna McDaniel called Trump "clearly the big winner" Monday.

"We had the highest turnout ever for an incumbent president," she said. "The energy on our side is so strong." 

McDaniel called the Democratic caucus count "a debacle" and insinuated without providing any evidence that Joe Biden's possible performance in the state might have something to do with it.

"I think that the party needs to figure out why all these inconsistencies in Iowa, especially when Joe Biden looked like he was going to have an abysmal, abysmal night last night."

The Iowa Democratic Party said early Tuesday that it would release the results of the Iowa caucuses after "manually verifying all precinct results."

Party Chair Troy Price said the party is "validating every piece of data we have against our paper trail. That system is taking longer than expected, but it's in place to ensure we are eventually able to report results with full confidence."

Biden campaign touts success in 3 Iowa counties

Biden's campaign is using last night's confusion to raise money as his campaign looks to the New Hampshire primary.

"If anything, last night reinforced our campaign's anti-malarkey stance. But it was just the beginning — and it's the start we need to power us into New Hampshire and beyond. Donate $20 now to help us keep it going," the campaign said in a text to supporters on Tuesday. 

Biden's campaign is also touting its success in three Iowa counties as we continue to wait for the full results of the Iowa caucus. 

The campaign's senior adviser, Symone Sanders, said in a series of tweets on Tuesday that the campaign exceeded expectations in Polk, Louisa, and Linn counties. 

Sanders backer AOC urges everyone to 'breathe'

Iowa Dems to address campaigns at 11 a.m. local time

Iowa Democratic Party officials are holding a conference call with the representatives from campaigns this morning at 11 a.m. local time (12 p.m. ET), two senior campaign advisers in Iowa told NBC News.

Warren campaign says it will share internal data with Iowa Democratic Party

Warren's campaign said Tuesday it is providing its internal data to the Iowa Democratic Party as the results of Monday's caucuses have yet to be released. 

"Our campaign collected photos and other raw documentation of the results at hundreds of caucus locations as part of our internal reporting process," tweeted campaign manager Roger Lau. "Today we will provide what we have to the Iowa Democratic Party to help ensure the integrity of their process."

In a shot at Buttigieg, senior Warren strategist Joe Rospars tweeted: "Any campaign saying they won or putting out incomplete numbers is contributing to the chaos and misinformation."

'I gave up': Caucus officials previously expressed doubt about results app, emails show

Some precinct captains and caucus organizers also expressed doubt about the app in the days leading up to the caucuses. An email chain provided to NBC News showed that precinct captains and caucus organizers in the Iowa City area knew of problems with the reporting app as early as Monday morning. The email was shared on the condition that identities would be redacted.

“Nobody having trouble with the app should feel dumb!” one of the organizers wrote on Monday morning. “I am hearing way more problems than in 2016… Worst case, call it in, which I expect 90% of the state will be doing anyway.”

“I gave up on the app,” another precinct chair replied.

The app was the subject of scrutiny in the weeks before the caucus due in part to the lack of information around it. The Iowa Democratic Party did not reveal what company developed the app or make it available for independent security testing.