Here is the latest Iowa news from The Associated Press at 3:35 a.m. CST

DES MOINES, Iowa (AP) — The Iowa caucuses are small local meetings where neighbors and strangers stand up to show their support for a particular candidate, and to persuade others to join them. They’re also the first opportunity for Democrats to express their preferences in what’s been a long and tumultuous primary. Iowa’s 41 pledged national delegates are awarded based on the results. The winner of the caucuses may also get a boost in fundraising, media attention and momentum in the following primaries. A bad performance could also doom a candidate.

DES MOINES, Iowa (AP) — The voting in the Iowa caucuses is finally starting. The candidates have been racing around the state all weekend trying to fire up voters and make a last appeal to people struggling to make a final decision about who to support in the crowded field. Campaigns and voters acknowledged a palpable sense of unpredictability and anxiety as Democrats begin choosing which candidate to send on to a November face-off with President Donald Trump. Four candidates are locked in a fight for victory in Iowa and others are in position to pull off surprisingly strong finishes.

LINCOLN, Neb. (AP) — Roughly one month after the federal government announced a new crackdown to keep e-cigarettes away from children, state lawmakers in Iowa and Nebraska are forging ahead with similar proposals of their own. Both states are considering new laws to raise the minimum age for vaping to 21 years old in addition to other measures to try to restrict the product. An Iowa Senate Subcommittee advanced the measure earlier this month to raise that state’s legal age from 18 to eliminate the conflict with federal law. In Nebraska, a legislative committee will review its own bill on Tuesday.

DES MOINES, Iowa (AP) — A small, yet critical battle is going on within the big Democratic presidential field. Several candidates are jockeying to secure the backing of their party’s establishment wing. Joe Biden, Pete Buttigieg and Amy Klobuchar are fighting for the political and financial support of the party’s leading donors, elected officials and pragmatists who are eager to unify behind a moderate alternative to the leading liberals Elizabeth Warren and Bernie Sanders. The first answers will come Monday in the Iowa caucuses. That’s when voters will begin sorting out the fight between progressive candidates and their more moderate rivals.