Barack Obama will reach for a symbolic tipping point in the Oregon and Kentucky primaries Tuesday — a majority of pledged delegates offered in the Democratic presidential contest.Hillary Rodham Clinton vowed there was "no way that this is going to end anytime soon" as she campaigned Monday across Kentucky, a state she was expected to win.
Obama was favored in Oregon, where supporters delivered the largest crowd of his campaign on Sunday.
Regardless of who prevails in those states, Obama is on track to secure the largest share of delegates who could be won in the long slog of primaries and caucuses since the snows of January.
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