"In the first five-and-a-half months of 2004, the last presidential election year, Fox’s prime-time audience among viewers aged 25 to 54 was more than double that of CNN’s — 530,000 to 248,000, according to estimates from Nielsen Media Research. This year, through mid-June, CNN erased the gap and drew nearly as many viewers in that demographic category as Fox — about 420,000 for CNN to 440,000 for Fox. Meanwhile, CNN has added 170,000 viewers a night, on average, when compared with the last presidential year, while Fox has shed about 90,000, according to Nielsen. (MSNBC, which added 181,000 viewers in that audience, much of it courtesy of gains by “Countdown With Keith Olbermann,” still lagged in third place, with 303,000.)" [NYT]