US President George W. Bush has described John Kerry's tour of duty in Vietnam as more heroic than his own service in the Air National Guard, saying his Democratic rival had been "in harm's way."
But the president told NBC's "Today" show that both sides should drop the debate over their wartime service, saying, "I think that we ought to move beyond the past. ... The real question is who best to lead us forward."
Asked if he believed that he and Kerry "served on the same level of heroism", Bush replied, "No, I don't. I think him going to Vietnam was more heroic than my flying fighter jets. He was in harm's way and I wasn't."
Excerpts of the interview, conducted on Saturday for broadcast on Monday, were released by NBC. The president continued to defend his own service in the Air National Guard, saying, "On the other hand, I served my country. Had my unit been called up, I would have gone."
Kerry's war record in Vietnam has dominated the 2004 presidential campaign in recent weeks, after advertisements by a group called Swift Boat Veterans for Truth accused him of lying about the events that led to his decoration for bravery.
The White House on Thursday said it would file a lawsuit to try to force the Federal Election Commission to crack down on the ads. Bush says he does not believe Kerry lied about his record, but he has refused to condemn the ads directly.
Kerry accuses the Bush campaign of colluding with the Swift Boat Veterans on the ads, a charge the White House has denied. But its case was hurt this past week when a top lawyer for the Bush campaign, Benjamin Ginsberg, resigned after disclosing he was providing legal advice to the veteran's group.
After Ginsburg's resignation, 50 percent of Americans said they believed the Bush campaign was behind the Swift Boat Veterans ads, according to a survey by the University of Pennsylvania's Annenberg Public Policy Center.
Pollster Adam Clymer said Ginsburg's resignation heightened the belief that the Bush campaign had supported the ads, but the controversy could fade from public view when the Republican National Convention begins next week.
Federal election rules bar organizations that take unrestricted donations from coordinating their activities with campaigns or political parties.
The issue has also caused tension with Republican Sen. John McCain, another Vietnam veteran and influential lawmaker who has urged Bush to condemn the ads and get them halted.
McCain is backing Bush for the White House, but the Arizona senator has defended his friend Kerry and threatened to raise the issue with Bush when they campaign in Iowa next week.