President Obama was addressing same-sex marriage in a speech in the East Room of the White House when he was interrupted by a pro-immigration campaigner.
Obama seemed less patient than he has been in the past, telling the heckler, who called for a halt to all deportations, to leave.
"Hold on a sec," Obama said. "OK. You know what. Nah, nah, nah, nah, nah, nah. No, no, no, no.
"Hey, listen, you're in my house," he added, to cheers from the audience.
Here's the video of the exchange, courtesy of C-Span.
Obama then asked that the hecker be escorted out of the event.
"As a general rule, I am just fine with a few hecklers but not when I am up in the house," he said later, to laughter from the crowd. "If you are eating the hors d'oeuvres, know what I'm sayin'? And drinking the booze."
Familia: TQLM, an immigration advocacy group, identified the heckler as Jennicet Gutiérrez, a transgender woman who is in the country illegally. The group said Gutiérrez called on Obama to "release all LGBTQ immigrants from detention and stop all deportations." NPR has not independently confirmed the heckler's identity.
You can watch the president's full remarks here.