DUBUQUE, Iowa - The US 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, DC, to the politicians who are working for the other candidate," Romney told about 2,000 people.

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