Barack Obama can secure more ammunition for his claim to the Democratic presidential bid in Tuesday's primaries in Oregon and Kentucky.
The Illinois senator is on track to grab a majority of pledged Democratic delegates for the party nod. That achievement could persuade remaining uncommitted superdelegates to throw their support his way.
Still, the former first lady has soldiered on in the race. She's favored to win in Kentucky, where she's campaigned heavily in the past week. She says Obama doesn't have the votes yet to be acting like the Democratic nominee.
Obama is expected to win in Oregon, where he was greeted by a estimated crowd of 75,000 people at an event over the weekend. He'll spend today in Iowa, which gave him a victory in the first test of the primary season back in January.