Sen. Saxby Chambliss (R-Ga.) is not changing his mind on same-sex marriage. (Yuri Gripas -- Reuters)

The shift in public opinion on gay marriage has not had much impact on Capitol Hill, Politico finds. Asked if his views on the issue were changing, Sen. Saxby Chambliss (R-Ga.) replied, “I’m not gay. So I’m not going to marry one.”

Other senators gave less colorful responses, but the overall takeaway is the same. While Ohio Sen. Rob Portman's embrace of gay marriage has been largely accepted by his party, most of his Republican colleagues will not be joining him any time soon. Some vulnerable Democrats up for reelection in 2014 are also hoping to avoid the issue. 

New Jersey Gov. Chris Christie (R) reaffirmed Wednesday that he opposes gay marriage, although he is undecided on a ban on "gay conversion therapy" currently working its way through the state legislature. House Speaker John Boehner (R-Ohio) has said that he respects Portman's decision but isn't changing his.

After releasing a report Monday that called for the GOP to be "welcoming and inclusive" toward gay Americans, Republican National Committee Chairman Reince Priebus told MSNBC, “I know what our principles are, and I know our party believes marriage is between one man and one woman."

While dozens of prominent Republicans signed on to a legal brief arguing to the Supreme Court that same-sex marriage is a constitutional right, only two are current members of Congress: Reps. Richard Hanna (N.Y.) and Ileana Ros-Lehtinen (Fla.).