https://www.theregister.co.uk/2017/09/28/trump_vs_zuckerberg/

United States president Donald Trump has declared that Facebook was always against him and tossed it into the same bucket as The New York Times, which he regards as fake news, and The Washington Post, which he says is biased against him because it's owned by Amazon's Jeff Bezos.

As is Trump's habit, his allegation of collusion was offered without a shred of evidence. Perhaps that is why Facebook founder Mark Zuckerberg's response comes off as a little terse.