Bernie Sanders, I-Vt., speaks during a campaign rally at Grand View University, on Sunday, Jan. 31, 2016, in Des Moines, Iowa.

For the Democrats, Clinton needs a win in Iowa to prevent a potential two-state opening losing streak that would raise fresh questions about a candidate who was considered the clear front-runner just two months ago. ABC News will be streaming coverage from Iowa all day. Even if you can’t directly live stream the coverage, you have several options when it comes to getting live results.

The Ohio governor’s lineup of speakers at the Iowa caucuses included a number of Ohio state officeholders and lawmakers, two conservative former congressmen and leaders in agriculture and manufacturing. How Good Are the Iowa Caucuses at Picking Presidents?

Adding to the unpredictability in Iowa was a large bloc of undecided or persuadable voters in both parties in a state where voters accustomed to a long courtship from candidates are traditionally in no rush to make a commitment.

But among first-time caucus-goers, Trump leads Cruz 40-22 percent. Among Republicans, billionaire Donald Trump appeared to have a slim edge over Texas Sen. Trump has a great following with noncollege-educated, white, working-class voters, while Sanders has been reaching out to young voters.

Sanders told volunteers and supporters: “We will struggle tonight if the voter turnout is low”.

Turnout was expected to be high.

Nevertheless, it is the first voting of the 2016 presidential election cycle, so it is a pretty big deal – this is the first time candidates are judged by voters instead of pollsters and pundits. There’s a winter storm predicted to start Tuesday, but it could hit parts of Iowa on Monday night, and that could depress turnout.

A victory by Sanders in Iowa would give him momentum headed into the February 9 New Hampshire primary. Some candidates didn’t plan to wait. Three percent said they’d back former Maryland Gov. Martin O’Malley. He won the presidency.

“I got kind of caught up in the Trump phenomenon”, said Reese, who works at an automotive warehouse. Some could pivot quickly and throw their support behind another candidate.

If former Arkansas Gov. Mike Huckabee and former Pennsylvania Sen.

The Caucuses are party functions. And that means you’ll need to pay close attention to the outcome. Trump supporters include many people new to caucusing and to the Republican Party, who could be less likely to turn out to vote.

Since early January, Iowa’s voter registration rolls have increased by more than 6,700, with 3,651 new Republicans and 2,724 new Democrats, according to the Secretary of State’s office. If not, their backers can either choose not to participate or can join another viable candidate’s group. The ultimate prize is delegates to the parties’ national conventions.

Caucus rules present a huge problem for the Democratic presidential hopeful.