New White House chief of staff will be biggest homophobe yet.

As a House member, Mick Mulvaney received a zero in every term on the Human Rights Campaign’s Congressional Scorecard. (AP photo)

Mick Mulvaney, set to become acting White House chief of staff because nobody else wanted the job, brings a virulently anti-LGBTQ record to the post.

Mulvaney, currently director of the Office of Management and Budget, will replace…