Groups opposed to gay rights are applauding Mitt Romney's selection of Wisconsin Rep. Paul Ryan as his running mate.

Ryan scored zero on the Human Rights Campaign's (HRC) latest Congressional Scorecard, a measure of an elected official's support for gay rights. The 42-year-old congressman twice voted in support of the failed Federal Marriage Amendment, which would amend the U.S. Constitution to define marriage as a heterosexual union. He also voted against repeal of “Don't Ask, Don't Tell.” In 2007, he voted in favor of a version of the Employment Non-Discrimination Act (ENDA) which would outlaw workplace discrimination based on sexual orientation. The current version of the bill, which the House has not voted on, adds gender identity.

“Paul Ryan is a great choice. He has one little blip in that he voted for ENDA (Employment Non-Discrimination Act) a long time ago but voted right on the marriage amendment and supports the unborn. Plus, I get to pull back out my t-shirt from 2008 that says ‘Our VP is hotter than your VP!’ Bonus,” Concerned Women for America's Penny Nance wrote.

Ralph Reed, founder of the Faith and Freedom Coalition, described the selection of Ryan as “inspired” and “outstanding.”

“He is a person of devout Christian faith who has a 100 percent pro-life and pro-family voting record in his 14 years in Congress,” Reed said.

Tony Perkins, president of the Family Research Council, said Ryan's voting record “suggests that he believes that social, fiscal and national security conservatism is indivisible.”

(Related: Gay GOP groups cheer Mitt Romney's choice of Paul Ryan.)