The War Against the Press

The lead author of the Times report, Elisabeth Bumiller, said she is "completely confident about the story." As for the campaign's criticism, she said: "This is what they do. It's part of their operation."

McCain also canceled a scheduled appearance on CNN's "Larry King Live" on Tuesday in retaliation for an interview a day earlier in which prime-time host Campbell Brown repeatedly pressed campaign spokesman Tucker Bounds to provide one example of a decision that Palin had made as commander of the Alaska National Guard.

"The interview was totally fair," Brown said. "I was trying to get an answer. I was persistent, but I was respectful. That's my job. Experience is a legitimate issue when John McCain raises it about Obama, and it's also legitimate for us to raise it about Palin."

Schmidt, a former spokesman for President Bush and California Gov. Arnold Schwarzenegger, talked openly about his frustrations in an interview with The Washington Post. He said the McCain camp is in the middle of the worst media "feeding frenzy" he has ever seen.

The fact that unsubstantiated allegations appear on the Internet "is not a license for smearing" Palin, he said. "The campaign has been inundated by hundreds and hundreds of calls from some of the most respected reporters and news organizations. Many reporters have called the campaign and have apologized for asking the questions and said, 'Our editors are making us do this, and I am ashamed.' "

The intensity of media inquiries hit a new level after an anonymous blogger on the liberal Web site Daily Kos last weekend charged that McCain's running mate is actually the grandmother of Trig Palin, the 4-month-old baby born with Down syndrome, and that the real mother is her daughter, 17-year-old Bristol Palin. That led to mainstream media inquiries, which prompted the McCain camp to disclose in a statement Monday that Bristol is five months pregnant and plans to have the baby and marry the teenage father.

The site's founder, Markos Moulitsas, said he did not know the contributor's identity but thought that the admittedly "weird" pregnancy questions were a legitimate line of inquiry that he should not suppress.

Some journalists, Schmidt said, have demanded to see Trig's birth certificate, or have asked when Palin went into labor and whether her contractions increased or decreased as she traveled from Texas to an Alaskan hospital in her home town, Wasilla. Others, he said, have asked whether Palin's eldest son, Track, who serves in the Army and is deploying to Iraq, is a drug addict. "Categorically false," Schmidt said, adding: "This is crazy."

News organizations routinely ask questions about allegations in an attempt to determine their veracity, and Schmidt did not contend that they were publishing or broadcasting false information about Palin and her family. But he said the media is asking more questions about Palin's pregnant daughter than about Obama's real estate deal with fundraiser Tony Rezko, who recently was convicted on corruption charges. Obama has called that transaction a "boneheaded mistake."

Bloggers on the left and right increasingly drive media coverage by turning up the volume on questions until they are difficult to ignore. Sometimes they are right, as when they questioned what CBS's Dan Rather said were National Guard documents in a 2004 report on President Bush's military service that led to Rather's ouster as the network's anchor. And sometimes they are wrong. Last year, the New Republic retracted a soldier's dispatch on petty wartime cruelty in Iraq, and National Review Online acknowledged that two blog postings by a former Marine about military movements in Lebanon were misleading.

Major newspapers, magazines and networks no longer play their traditional gatekeeper role in the digital age, as was evident during the eight-month period when the National Enquirer was charging former senator John Edwards with fathering an out-of-wedlock baby. Most national news outlets did not report the allegations until last month, when Edwards acknowledged an affair with a former campaign aide but denied being her child's father.

Still, traditional media outlets can amplify and legitimize such reports, which might be why the McCain campaign is fighting so hard to keep the Palin allegations confined to the Internet. Denouncing the news media as biased also plays well with many Republican voters.