http://www.foxnews.com/tech/2018/03/27/facebook-thinks-it-knows-whether-youre-liberal-or-conservative-heres-how-to-find-out.html

"Your Categories, which contains a section called US Politics — in parentheses, Facebook will have you labeled as Very Liberal, Liberal, Moderate, Conservative or Very Conservative."

I think they've pulled it. Couldn't find it on my account.