Voters in the Iowa election on Tuesday will decide whether Barack Obama or Mitt Romney will win the state's 6 electoral votes.
The most recent polls show Obama running just ahead of Romney in Iowa.
The Des Moines Register endorsed Romney in the contest less than two weeks ago. The support came as a surprise to many as the Hawkeye State-based outlet came out in favor of Obama in his 2008 race against then-Republican presidential candidate John McCain.
Reuters reported over the weekend:
The U.S. presidential race, which has hinged for months on a handful of states, converged on one city in Iowa on Saturday as President Barack Obama and Republican Mitt Romney each made a last-minute appeal for support before Tuesday's election.
With the race in a dead heat nationally, both candidates touched down briefly in Dubuque, a Mississippi River city of 58,000 people, as they sprinted across the country in a bid to secure any possible advantage before Election Day.
In an airport rally early in the afternoon, Romney urged supporters to try to sway friends and neighbors who back Obama. He said he would reach out to Democrats as well if elected - a stance that could appeal to independent voters who have little stomach for partisan gridlock.
"I want you to reach across the street to the neighbor, who has that other sign in his front yard. And I'm going to reach across the aisle in Washington, D.C., to the politicians who are working for the other candidate," Romney told about 2,000 people.
Six hours later, Obama reminded about 5,000 people in a park in downtown Dubuque that he had started his first presidential bid in Iowa in 2007, and highlighted successes of his time in office, such as ending the war in Iraq and expanding access to healthcare.
"After two years of campaigning and after four years as president, you know me by now. You may not agree with every decision I made, you may have sometimes been frustrated with the pace of change. But you know that I say what I mean and I mean what I say," Obama said.
Voters in Iowa can cast ballots at the polls between 7:00 a.m. and 9:00 p.m. Central time.
Here's a look at the latest swing state polls. Scroll down for live updates on the latest Election Day news.