Martha MacCallum will follow Carlson at 7 p.m., according to Fox, anchoring a program called "The First 100 Days", which will detail the first 100 days of incoming Trump administration.
After a record-breaking launch in the 7 p.m. hour last November, "Tucker Carlson Tonight" has become one of the most buzzed about cable news programs on television.
MacCallum, co-anchor of "America's Newsroom" with Bill Hemmer for the past six years, will slide over to primetime into Carlson's old spot. Based in NY, the show will chronicle the beginning of the new administration and run through Pres. -elect Trump's first 100 days in office.
"After more than a dozen years at Fox News, I have made a decision to pursue a new challenge", Kelly said on air Tuesday night.
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Trump failed to draw Kelly into his camp, but he succeeded with Carlson, who throughout the campaign also served as editor in chief of the Daily Caller, a conservative news site that generally covers Trump in a favorable light.
Drudge Report quoted an unidentified source who claimed Carlson was "an audience powerhouse" in his 7 p.m. slot.
Ms. Kelly addressed her own news at the end of Tuesday night's edition of "The Kelly File".
Known for its conservative voices, the 21st Century Fox unit is looking to maintain its perch atop the USA cable news landscape. Rupert Murdoch had offered her a $ 20-million-a-year gold contract to stay on Fox News, but the reporter preferred to switch.
Sherman also reported that "Murdoch balked when Kelly asked for $25 million", only to see a later report surface that said Kelly turned down a $100 million deal, so take his word with a grain of salt. "The dramatic move caps Carlson's rapid rise at the nation's top-rated cable channel", it said, describing him as the new "Cable King". On Monday, "Tucker Carlson Tonight" moves in and broadcasts live from the Fox News bureau in the nation's capital.
"Is it true, before I let you go, Brent, that NBC Nightly did not cover their own polls on 54 percent of the country?"