Tucker Carlson has been fired, and Fox News has announced that longtime network personality Jesse Watters will take his place.
The channel's primetime ratings have declined as a result of the departure of Carlson, the most popular cable news host in US history.
The network hired Mr. Watters, 44, as a production assistant in 2002. Since the beginning of this year, he has anchored the 19:00 EDT (23:00 GMT) timeslot.
Carlson and Fox News announced their separation in April.
Days prior to the announcement, Dominion, a manufacturer of voting machines, filed a defamation suit against the network for its coverage of the 2020 presidential election.
Later, Carlson debuted a brand-new show on Twitter.
A change in the channel's nightly lineup coincides with Watters' episode airing in Carlson's old 20:00 timeslot.
The popular late-night host Greg Gutfeld will take over at 22:00, the network announced on Monday. Laura Ingraham, host of The Ingraham Angle, will move to the 19:00 hour.
According to the network, Sean Hannity will continue to host his show at 21:00. Hannity has been a primetime Fox anchor for more than 20 years.