Green, 52, is a physician and West Point graduate who is popular among many tea party-aligned Republicans.
“The administration could not have picked a worse nominee,” said David Stacy, government affairs director of the Human Rights Campaign.
LGBT groups also took exception to a number of comments that Green has made regarding gay-rights issues.
While speaking to the Chattanooga Tea Party in 2016, Green referenced then-President Barack Obama’s federal guidelines allowing public school students to use restrooms and other facilities corresponding to their gender identity.
Green called transgender men and women “guys or gals with question marks” and complained, “The notion that Mr. Obama thinks he can tell the state of Tennessee who can go into a men’s bathroom or a women’s bathroom is absurd.”
In the same speech, Green suggested Tennessee should not issue marriage licenses to same-sex couples and insinuated that permissive attitudes that legalized same-sex marriage could eventually open the door to using taxpayer dollars for infanticide.