The New York Times reported on Tuesday that after Election Day, Facebook quickly changed its algorithm to prioritize establishment left-leaning news outlets over others.

From the Times:

“In response, the employees proposed an emergency change to the site’s news feed algorithm, which helps determine what more than two billion people see every day. It involved emphasizing the importance of what Facebook calls ‘news ecosystem quality’ scores, or N.E.Q., a secret internal ranking it assigns to news publishers based on signals about the quality of their journalism.”

The author explained that N.E.Q. scores play only “a minor role” in deciding what content shows up on users’ feeds. But after the election, Zuckerberg chose to “increase the weight that Facebook’s algorithm gave to N.E.Q. scores to make sure authoritative news appeared more prominently.”

What’s more dangerous about Facebook’s decision is that many of its employees are pushing for the change to become permanent, according to the Times.