The Democratic presidential express rolls into Kentucky and Oregon Tuesday - and the two candidates’ focus couldn’t be more different.

Sen. Barack Obama, the frontrunner, is looking ahead to a November election against Sen. John McCain. If he wins in Oregon tomorrow, as expected, he will likely clinch a majority of the Democratic party’s pledged delegates.

Sen. Hillary Clinton, meanwhile, has faced calls to drop out of the race since she trails on all fronts - pledged delegates, superdelegates and popular vote - but is nevertheless expected to post a big win in Kentucky.

Averages of recent polls in the two states show Barack Obama poised for about a 10 percent victory in Oregon, with Clinton leading by at least double that in Kentucky. The states have a combined 103 delegates (52, 51) at stake.

The primary season ends June 3. Puerto Rico weighs in on Sunday, June 1, and South Dakota and Montana close things out the following Tuesday.

As Hillary Clinton presses on, Barack Obama is (slowly, carefully) moving on.

Contrary to recent reports that he would declare victory if wins enough pledged delegates to claim a majority Tuesday, Obama insiders say he is respectful of not antagonizing Clinton and does not plan on doing so.

That doesn’t mean he won’t tiptoe right up to that thin line, without overtly stepping over it and asserting the race is over, however.

It may sound like semantics, but the decision not to declare victory is an important one - and a revealing measure of the sensitivity toward Clinton and her camp.

In the end, it’s a smart move on his part. No matter the result, the potential reward is not worth the risk of perceived alienation of Hillary Clinton, period.

Yesterday, Clinton encouraged Kentucky supporters to vote in the upcoming primary, saying, “If we get everybody turned out, it’s going to send a great message to our country that you don’t stop democracy in its tracks.”

Referencing Florida and Michigan, whose delegates have been stripped by the DNC, she said: “You don’t tell some states that they can’t vote and other states that have already had the opportunity that they’re somehow more important.”

In Oregon, Obama zeroed in on John McCain, the Republican nominee, suggesting that the Arizona Senator hasn’t received the kind of scrutiny that Obama has throughout the lengthy Democratic campaign.

“It is very understandable that the press focus has been on myself and Sen. Clinton because this has been a pretty exciting race on the Democratic side. I would expect that the press will submit him to the same scrutiny that they are submitting me,” he said.