Human memory is really bad at these kinds of subtle differences. You are just as likely to recall what seemed at the time obviously false information. This is why “stay on message” is the fallback plan when peddling bullshit, it works.
In the end you are much better off avoiding highly biased sources than trying to use them. This might change if you are doing a dissertation or something, but not for day to day stuff.
I made a point to say biased because I believe everything has a bias. There is no such thing as bias free, and any source that tries to claim no bias is trying to trick you. I personally avoid "ertremely biased" entirely; you only go to places like Brietbart if you only want to buy what they are selling. But the fact remains I can go to any story there and point out the flaws because I have a whole universe of other facts to work with.
In the end you are much better off avoiding highly biased sources than trying to use them. This might change if you are doing a dissertation or something, but not for day to day stuff.