Newt Gingrich has all but made media bashing a pillar of his campaign platform. He often uses the debates as opportunities to chide the press on its own turf. He has called out Fox’s Chris Wallace for asking “gotcha questions,” and accused news channels of using the debates to pit Republicans against one another. In a debate last week in Michigan, he criticized one query on health care from a moderator as “an absurd question,” a line that drew laughter from the audience. And on Saturday he flatly refused to answer one question posed by Major Garrett of National Journal.

Even when Mrs. Bachmann was riding high in the polls, her relationship with the press was strained, in particular over coverage of the Christian counseling practice of her husband, Marcus.

Mrs. Bachmann has gone from being a media fascination after winning the Ames, Iowa, straw poll this summer — she was featured in cover stories in The New Yorker and Newsweek, and frequently appeared on Sunday morning talk shows — to being largely an afterthought. A review of hundreds of election news stories from Oct. 3 to Nov. 6 by the Project for Excellence in Journalism found that Mrs. Bachmann figured prominently in just 13 items.

The review found that Mr. Cain received the most press attention, with at least 297 stories in which he was a dominant subject; Gov. Rick Perry of Texas was second with 150 stories; Mitt Romney was third with 148. Representative Ron Paul of Texas and Mr. Gingrich trailed Mrs. Bachmann with eight and five stories.

Mrs. Bachmann might take some solace in the fact that the review found no stories in which Rick Santorum or Jon M. Huntsman Jr. were a dominant subject.

Mr. Paul’s campaign has also frequently complained that the press all but ignores him, despite his polling near the top of the Republican field in some Iowa surveys. Jesse Benton, Mr. Paul’s campaign manager, said Sunday that Mr. Dickerson’s e-mail had put into writing what he hears from media outlets on a regular basis.

“I wasn’t surprised at all,” he said. “We get that kind of stuff all the time.”

In the debate on Saturday night, which preliminary ratings show drew 5.3 million viewers, Mrs. Bachmann was not asked a question until 15 minutes into the hourlong broadcast. CBS asked the questions in order of each candidate’s standing in recent polls.