I worked with them for 3 decades. I used to joke that I stopped trusting them when they quoted me. If they did, I figured they’d quote anyone.
Sharyl Atkisson lists them. She is one of the only creditable journalist you can find. She actually got punished for reporting the truth.
It didn’t just start. They have been lying and manipulating the readers since the beginning of politics.
They are news readers and not journalists anymore.
My advice is don’t read or listen to the news. Seek it out on Substack or another place less biased.