NARROWING THE FIELDThe Fox News primaryhttp://www.nytimes.com/2011/12/10/us/politics/a-republican-primary-campaign-waged-on-fox-news.html“You don’t win Iowa in Iowa, you win it on this couch,” is how the Republican commentator Dick Morris put it on “Fox & Friends” on Wednesday. Mr. Morris said that the Republican debates and Fox News had forged a national primary that “imposes itself on Iowa.” .