As the Democratic primary battle looks to be coming to a close, Sen. Barack Obama was greeted by a record-turnout crowd in Portland, Oregon yesterday, estimated at 75,000. According to the NYTimes.com, the rally took place on the banks of the Willamette River, where even more people floated around in their boats, in an attempt to hear the Senator speak.

According to RealClearPolitics.com’s count, Obama leads Clinton in Oregon by 10.8-percent, while Clinton has a 29.6-percent lead in Kentucky. Both states hold their primaries tomorrow.

That said, Obama holds a 159 pledged delegate lead over Clinton, with his margin increasing to 181, when declared superdelegates are included in the count. After Tuesday’s primaries, Obama is expected to earn the majority of total pledged delegates available from all contests this primary season, making it impossible for Clinton to catch-up in pledged delegates.

Sen. Clinton’s only chance at securing the nomination is overwhelming and unprecedented support from the remaining, undeclared superdelegates. But something tells me that’s not going to happen.

[Check out more pictures from Obama's Oregon rally here!]