Yes which still airs today. In the early days of Fox News Network, Fox did air a primetime News series called Fox Files in 1998.
They tried their hand at news before there was a news network also in 1993 with Front Page and also in the late 80's and early 90's after the primetime shows the network had a brief 30 second to a minute Fox News Breif as well even though Fox News didn't have their own cable network yet.
Now that Nexstar took over WGN America (formally WGN Superstation) which carried WB programming from 1995-1999, while WGN itself has carried WB and CW from 1995-2016. Nexstar turned it into Newsnation and with them owning Newsnation and CW and also airing their Liv Golf back on WGN 9 could mean that they will make the CW more like Fox.
Very little scripted shows, with most of the programs reality shows, sports and maybe 1 or 2 shows from NewsNation.
If they air anything from NewsNation on the CW idk if its going to be completely new like what Fox did with their shows like Fox Files, After Breakfast or Fox News Sunday or if it will be repeated programming from different stories and reporters from Newsnation. Only time will tell as they say they want to make it profitable by 2025. That's only 2 years away.