His nomination all but assured, Mitt Romney is set to inch closer to clinching the GOP presidential nomination with a presidential primary in Oregon.
Oregon and Nebraska are taking their turns weighing in on the Republican race, though Nebraska's contest is little more than a beauty contest.
The major difference when Republicans go to polls on Tuesday is the lack of opponents for Romney.
Texas Rep. Ron Paul became the last Romney rival to step aside, saying in a statement Monday that he would stop spending money to compete in primaries.
He urged his fervent supporters to continue working at the state party level to cause havoc for Romney.
Nebraska voters will also select the Republican candidate to face Democrat Bob Kerrey in the state's U.S. Senate race.
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