538 is a subsidiary of ABC news whom is a subsidiary of Disney, one of the big 4 media oligopoly conglomerates in the US including News Corp, Viacomm, and AG Bertlesmann. Collectively they own over 90% of the print, radio, television, and online news market share in the US.
Those 4 orgs have all switched their business models from selling news to selling ad's and unfortunately that means spending billions of dollars on "marketing" (aka doing what we called psychological warfare in the 1970's) to prime their constituency to be the product for large marketing and advertising companies. Check out the BLS OES job wage data since the 70's, we've gone from 90% journalists and 10% marketing\PR positions to 90% marketing\PR and 10% journalists. Look up any vietnam war era psyop manual and compare to a marketing\pr degree, they all go over the same thing. Focus groups, wording, demographics, psychographics, and so forth.
Just about every poll done since 2000 has shown 70-80% of the population does not trust the accuracy of those orgs. I have personally completely ignored those big 4 news orgs for the past 15 years as they have not had anything relevant to say for at least that long. All they will ever do is fill your head with useless infotainment and garbage that makes no sense and mess with your senses. The last 4 years of anti-Trump BS really should have cemented that for you. Not everyone has to like the guy, and that's fine, but if a news org wastes your time with yet another Trump hit piece, maybe it's time to look for alternatives.
Activist orgs tend to be more accurate these days, and tend to provide better quality information since people view them with more skepticism than one of the aformentioned news brands and Those orgs tend to be backed by large groups of imprompu organized activists doing hard research.
If none of that convinces you, Take a news literacy course. You'll find out a lot of what they publish just falls flat on its face.