You can check facts the exact same way we've been doing for many years - find corroborating sources, view first hand evidence (and no, you don't need to do this in person), look for analysis from trusted sources etc etc.
Even if a newspaper claims to do fact-checking or is somehow legally obligated to do fact-checking, that's absolutely no guarantee that it's facts are accurate or free from bias.
If you want real fake news, Google any semi-obscure health issue. You'll be lucky to find one or two .gov's among sketchy sites peddling homeopoathic cures.
I believe that's only on /b/.
https://skeptics.stackexchange.com/questions/9423/did-charli...
https://skeptics.stackexchange.com/questions/2094/is-a-write...
I question the utility of you having any opinion on US politics, especially at the local level. You are certainly entitled to one but I don't know what it gets you without a vote.
https://travel.state.gov/content/passports/en/abroad/legal-m...
(Not to mention that a Swede can have a very legitimate, personal, vested interest in what's going on in the US, maybe the GP had family vacationing in Vegas. - I had family vacationing in France during the Paris bombings, my mother-in-law called me up frantically that day.)
Maybe I have friends and family there.
Maybe I used to live and work there.
Maybe I have a long distance relationship with someone there.
There are millions of reasons why someone would be interesting in knowing what is happening in a place other than which they current live.
I live in Sweden. How do I fact check what happens in a neighborhood in the USA? How do I know that a result of a clinical test is reliable?
Do I check it on another on-line source? Do I spend millions on R&D and do my own analysis? Or just few thousands going to Las Vegas and gathering my own data? Or do I need to wait for a Newspaper that actually has fact-checking?
> Even more reputable sites like Snopes tend to draw absolutist conclusions about things which I find are certainly not absolute.
Billions of citizens fact-checking every single news is not cost effective. It will be good to have a minimum of quality, and then you can apply any correction to the inherent bias of that medium. There is a difference between someway biased information and bullshit.