Fox News says its former CEO and Chairman Roger Ailes died at age 77.
George H.W. Bush said Ailes "wasn't perfect" but called him "my friend".
A caller told 911 dispatchers at about 1:49 p.m., moments after the accident happened, that Ailes was lying on the floor and bleeding seriously after he fell accidentally.
Few other details were immediately available, including whether the victim was taken to the hospital. Twenty-First Century Fox noted in a recent quarterly report that it paid $45 million in settlements related to sexual harassment allegations against Ailes.
"For better or worse & the ignominious end 2 his reign at Fox News, the impact of Roger Ailes on American politics & media was indisputable", he tweeted.More news: Severe weather outbreak predicted in Oklahoma, Kansas
"Roger was a great patriot who never ceased fighting for his beliefs", the 86-year-old said in a statement. He joined Fox in 1996 and helped build it into a massively influential and profitable section of Rupert Murdoch's 21st Century Fox.
"Basically how they shaped that conservative opinion that quite frankly before Fox news many think didn't have that play before".
Under Mr Ailes' leadership, Fox became US' most widely watched cable news channel, home to key conservative political commentators, and drew an audience distinct from rivals CNN and MSNBC.
Bush's positive words stood out amid a swell of criticism over Ailes' alleged sexual harassment of former Fox News host Gretchen Carlson and dozens of other female employees.
Roger Ailes was a 1958 graduate of Warren G. Harding High School.
He said he suspects the rest of the media, who despise Fox News, will not "leave Roger and his family alone in their time of grief" but that's ok because Ailes "just has a head start in preparing to kick your ass in the next life".More news: Penguins vs Capitals - Game 6: Trevor Dailey ruled out with body injury
Some will mourn, some will cheer, but there is no doubt that Roger Ailes left his imprint on the Media establishment in America.
The founder of Fox News and longtime Republican political operative had a profound influence on American life, building Fox News into a powerhouse that transformed the media landscape and conservative politics. Or that Ailes, who helped craft former President Richard Nixon's anger-stoked presidential campaign, informally advised Trump during his run for president.
Roger Ailes, the architect of the Fox News Channel, died Thursday.
Ailes is survived by his wife Elizabeth and son Zachary.
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