Campaigning a few miles from each other Friday, Barack Obama trained his eye on November and the GOP, while Hillary Rodham Clinton battled for her political life, trying to hang on a bit longer in hopes of denying him the Democratic presidential nomination.

Obama, increasingly confident that Clinton cannot overtake his lead, ignored her in his prepared remarks at a Portland-area workplace. Instead he pointedly criticized Republican Sen. John McCain's economic, health and Iraq policies, saying the probable GOP nominee would continue failed Bush administration priorities.

When asked about Clinton, Obama heaped more praise than criticism on the New York senator, continuing his efforts to avoid antagonizing her or her supporters. Speaking later with reporters, Obama hinted that he might help Clinton retire her campaign debt if he prevails.

Also campaigning in Portland, ahead of Oregon's May 20 primary, Clinton took the opposite tack, knowing she can't take on McCain unless she somehow derails Obama. At a round-table at Doernbecher Children's Hospital, she criticized Obama's health care plan for promising universal coverage to children but not adults.

"An artificial distinction between children and adults is unworkable," Clinton said. "You've got to have a seamless health care system which covers every single person. My plan does, my opponent's doesn't."

She added, "This is a big difference in this campaign. It's not a difference of politics so much as commitment. ... How can anyone run to be the Democratic nominee and not have a universal health care plan?"

Obama, a first-term Illinois senator, says he has not secured the Democratic nomination, even as party superdelegates continue to abandon Clinton, or their previously undeclared status, and endorse him. But his campaign increasingly looks like a general election affair, with him focusing on McCain and devoting two full days this week to Oregon, a perennial battleground state between the two parties.

Speaking to a few dozen employees of Vernier Software & Technology, which develops educational materials, Obama said McCain was "dead wrong when he said recently that he thinks our economy has made 'great progress' under George Bush. Is there anyone outside of Washington D.C., who could truly believe that?"

He rebuked McCain for supporting Bush's "tax cuts for the wealthiest Americans," a temporary halt to the federal gasoline tax and continued heavy U.S. presence in Iraq.

Obama did not mention Clinton until an employee asked about their respective health care plans. He acknowledged Clinton's criticisms, but said the government should not penalize low-income adults who choose not to buy health insurance even with a significant government subsidy.

When asked if he might make Clinton his running mate, Obama said it would be presumptuous to speculate because "I have not won this nomination yet."

"But I will say that she has shown herself to be an extraordinary candidate and an extraordinary public servant," he said. "She is hardworking, she is tough, she is very smart. And so I think she would be on anybody's list, short list, of vice presidential candidates." Continued...