President Obama's announcement that he now supports same-sex marriage came after the country reached a turning point on the issue.
For the first time last year, surveys found the majority of Americans support same-sex marriage. And while it's still close to 50-50, the nation's stance has changed dramatically over the last two decades.
What's causing the change? Coming up in the Newsroom, we'll break it down for you - and show you how the issue could play out with constituents heading into the presidential election.
What do you think?