President Lyndon Johnson once famously said about his support of the Vietnam War that once he had lost Walter Cronkite he had lost America. Johnson was referring to a report Cronkite once did where he said the war could not be won.

We don’t know if this is such a watershed moment in the latenight TV wars, but in a commentary marked by vitriol, longtime TVWeek contributor Aaron Barnhart, the TV Critic for the Kansas City Star, in his latest entry at his popular TVBarn.com website, does not mince words in telling us where he stands in the Leno/O’Brien/NBC spectacle.