US cable-news viewership dropped for all major networks in the first three months of the year, as the country moved past the presidential election and its messy after-effect. Fox News lost 32% of its total prime-time audience compared to Dec.31, Nielsen data show. CNN and MSNBC had smaller declines of 16% and 7.8%, respectively, though each fell more substantially from highs they slammed in January.The ratings gap between the major players is tighter than it was a quarter ago, as all networks try to establish their approach at the outset of the Biden administration. Fox News retained the No. 1 spot among prime-time viewers aged 25 to 54, a key demographic for advertisers, even as all networks lost viewers in that category. Fox News is No. 2 in that demographic. MSNBC drew the most daily viewers, with an average of 1.38 million watching over a 24-hour span.