"The strategy the veterans devised would ultimately paint John Kerry the war hero as John Kerry the "baby killer" and the fabricator of the events that resulted in his war medals. But on close examination, the accounts of Swift Boat Veterans for Truth' prove to be riddled with inconsistencies. In many cases, material offered as proof by these veterans is undercut by official Navy records and the men's own statements."

Several of those now declaring Mr. Kerry "unfit" had lavished praise on him, some as recently as last year.

In an unpublished interview in March 2003 with Mr. Kerry's authorized biographer, Douglas Brinkley, provided by Mr. Brinkley to The New York Times, Roy F. Hoffmann, a retired rear admiral and a leader of the group, allowed that he had disagreed with Mr. Kerry's antiwar positions but said, "I am not going to say anything negative about him." He added, "He's a good man."

In a profile of the candidate that ran in The Boston Globe in June 2003, Mr. Hoffmann approvingly recalled the actions that led to Mr. Kerry's Silver Star: "It took guts, and I admire that."

George Elliott, one of the Vietnam veterans in the group, flew from his home in Delaware to Boston in 1996 to stand up for Mr. Kerry during a tough re-election fight, declaring at a news conference that the action that won Mr. Kerry a Silver Star was "an act of courage." At that same event, Adrian L. Lonsdale, another Vietnam veteran now speaking out against Mr. Kerry, supported him with a statement about the "bravado and courage of the young officers that ran the Swift boats."

"Senator Kerry was no exception," Mr. Lonsdale told the reporters and cameras assembled at the Charlestown Navy Yard. "He was among the finest of those Swift boat drivers."

Those comments echoed the official record. In an evaluation of Mr. Kerry in 1969, Mr. Elliott, who was one of his commanders, ranked him as "not exceeded" in 11 categories, including moral courage, judgment and decisiveness, and "one of the top few" - the second-highest distinction - in the remaining five. In written comments, he called Mr. Kerry "unsurpassed," "beyond reproach" and "the acknowledged leader in his peer group."

A series of interviews and a review of documents show a web of connections (neat chart there) to the Bush family, high-profile Texas political figures and President Bush's chief political aide, Karl Rove.

Records show that the group received the bulk of its initial financing from two men with ties to the president and his family - one a longtime political associate of Mr. Rove's, the other a trustee of the foundation for Mr. Bush's father's presidential library. A Texas publicist who once helped prepare Mr. Bush's father for his debate when he was running for vice president provided them with strategic advice. And the group's television commercial was produced by the same team that made the devastating ad mocking Michael S. Dukakis in an oversized tank helmet when he and Mr. Bush's father faced off in the 1988 presidential election.