33 hours until votes are counted in Oregon’s Democratic primary for President of the United States, Illinois Senator Barack Obama leads New York Senator Hillary Clinton by 13 points, defeating her 55% to 42%, according to this latest SurveyUSA poll conducted for KATU-TV, the ABC affiliate in Portland, Oregon.

Among men, Obama leads by 28 points; among women, the two candidates are tied.

Obama takes 63% of the under-50 vote, and 49%  of voters 50+.

54% of whites,  68% of Hispanics, and 62% of Asians pick Obama.

Obama leads by 13 points in greater Portland, and by 14 points in the rest of Oregon.

77% of voters have already returned their ballots; Obama leads by 9 points among them. Among the 23% who have not yet returned ballots, Obama leads by 28.

Full results and tracking are available here.