There's a HUGE difference between biases (different versions of the same event) and hoaxes (aka fake news, lies, deliberate deceptions, falsehoods), although hoaxes reflect the author's bias.   

Certain media outlets seem to spread hoaxes much more often, as well as the current administration in the White House.   And hoaxes (aka fake news, lies, deceptions, falsehoods) are not news (supported by provable facts) that someone doesn't like or "agree" with.