HIGHLIGHTS Donald Trump accused Facebook of being "always anti-Trump"Zuckerberg said the plaform is working to ensure free and fair electionsMorning Twitter tizzies have become a hallmark of Trump's presidency Facebook chief Mark Zuckerberg fired back at US President Donald Trump on Wednesday after he accused the leading social network of being "always anti-Trump." Zuckerberg rejected the notion, countering that Facebook is working to ensure "free and fair elections" with an online platform that does not favor one side over another. Zuckerberg's post at Facebook came after Trump accused the social network of bias in a morning tweet that read : "Facebook was always anti-Trump.The Networks were always anti-Trump hence, Fake News , @nytimes(apologized) & @WaPo were anti-Trump. Collusion?" Early morning Twitter tizzies have become a hallmark of Trump's presidency. "Trump says Facebook is against him. Liberals say we ...