A Google employee who wrote a manifesto critical of pro-diversity policies has been fired by the company. The manifesto blew up in recent days, primarily attracting negative publicity from those in favor of pro-diversity policies. Though the author, James Damore, also received positive attention from some members on the right and alt-right.

Damore says he’s “exploring all possible legal remedies” in response to his firing.

The document was critical of Google, which he believes operates in a politically biased manner. Damore primarily emphasized his belief that the gender gap in tech arises from biological differences, not from bad company policies. Therefore, trying to close it with pro-diversity policies may not make sense.

Before the document spread beyond the company, it went viral within Google. Much of the response from the get-go was negative.