A LOOK AT THE DELEGATE MATH

What's at stake in today's primaries: Oregon has 52 delegates; Kentucky, 51.

Where they stand: Obama goes into today with 1,610.5 pledged delegates won in primaries and caucuses. He needs 17 more to reach a majority of the 3,253 pledged delegates available. At that point, he will have won the contest for pledged delegates, won the most states and won the overall popular vote, even if Florida's disputed primary is included.

Clinton, who according to the Associated Press' has 1,443.5 pledged delegates, would edge ahead Obama in popular votes if Michigan is included. Obama's name wasn't on that ballot.

What it means: Obama is unlikely to clinch the nomination today. He is still more than 100 delegates shy of reaching the 2,026 delegates needed to win the nomination.

What about the supers? More than 200 superdelegates remain uncommitted, but they are moving to Obama at a pace that could give him the nomination on June 3, when Montana and South Dakota hold the final Democratic contests. He could clinch it sooner -- perhaps even this week -- if uncommitted superdelegates start flooding to him.

What the polls say: Hillary Rodham Clinton has a more than a 25 point lead in Kentucky, 51 percent to 25 percent, a poll said Monday. The race is tighter in Oregon where Barack Obama has 45 percent to Clinton's 41 percent.

Suffolk University conducted both telephone surveys Saturday and Sunday. Each involved interviews with 600 likely Democratic voters and have a margin of sampling error of plus or minus 4 percentage points.

NEWS SERVICES