Obama wins close race, beats Clinton in Guam

It will take 2,025 delegates to secure the Democratic nomination at the party's national convention this summer in Denver.

All-day voting Saturday had people lining up at 21 caucus sites around the U.S. territorial island, which has unexpected importance in a historic Democratic race in which every delegate matters.

There was no direct presidential vote, but each candidate had a slate of supporters on the ballot.

Slow ballot-by-ballot counting went through the night in the territorial legislative building after votes were hand-carried from the caucus sites.

Presidential caucuses on Guam usually pass without much notice from the candidates. This time, Obama and Clinton made their case for the territory's four regular delegates with local advertising and long-distance interviews.

Lines formed early at some caucus sites.

Cynthia Estrada of Dededo said she was making up her mind while waiting to vote, but she was leaning toward Clinton.

"She's had the experience," she said. "She's got her husband to help her."

Yona resident Tommy Shimizu said he was voting for Obama delegates.

"It's the fact that he grew up in Hawaii, and I think he can make change," he said. "I think it's time for that."