About 200 people attended Democratic caucuses Sunday in Richland, and organizers said they were enthusiastic supporters of President Obama.
As the only candidate running for the Democratic presidential nomination this year, Obama won unanimous support of Mid-Columbia caucus attendees.
Regina Speer, Benton County Democrats chairwoman, said the people who attended strongly were motivated to help the president get re-elected.
"I didn't hear anyone not for Obama," Speer said.
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Obama received 98 percent of the caucus vote statewide, a news release said.
Speer said everything went smoothly at Hanford High School, where all Benton County precincts gathered, and the caucuses wrapped up after about an hour, despite being scheduled for two hours.
"It was surprisingly smooth," she said. "Most of the people knew why they were here. We were prepared for a lot more people. In politics, the rule is if there's no contest, you don't get the same turnout."
Franklin County's Democratic caucus attracted 48 "enthusiastic participants," county chairman Michael Staudinger told the Herald.
By contrast, a hotly contested GOP nomination drew more than 3,000 people to Benton and Franklin county Republican caucuses in early March. Benton County organizers were unprepared for the crowd at the Three Rivers Convention Center in Kennewick, where most of the county precinct caucuses were held, and an estimated 1,000 people were turned away.
Cancellation of the state's presidential primary this year likely was another factor in the high turnout for Republican caucuses.
In addition to casting a vote for the Democratic presidential nominee, participants in Sunday's caucuses selected delegates to go to the legislative district conventions April 28 and possibly to the national convention in September in Charlotte, N.C.
Washington will send 121 delegates and nine alternates to Charlotte, the state party said.