The new WaPo-ABC poll shows a very polarized public.
They strongly disagree.
The change between 2012 and 2015 is striking.
Might we see a pro-gay marriage Republican presidential candidate in 2016? Probably not.
Everything you need to know about how the high court could rule.
Murkowski became the third Senate Republican to support gay marriage. Who will be next?
Many pols have suggested that individual states should decide whether same-sex marriage is legal. The public doesn't agree.
Sen. Mark Kirk (R-Ill.) on Tuesday joined three other congressional Republicans who support same-sex marriage. Here's a closer look at all four.
Sen. Chuck Schumer (D-N.Y.) said "every major policy issue" has been resolved in a bipartisan Senate working group.