Support for Gay Marriage Stable, at 63% May 22, 2019 A majority of Americans (63%) continue to say same-sex marriage should be legal, on par with the 64% to 67% Gallup has recorded since 2017. CONT. Justin McCarthy, Gallup Share:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Reddit (Opens in new window)Click to email a link to a friend (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pinterest (Opens in new window)MoreClick to print (Opens in new window)