"We don't believe in the kind of smallness that says it's okay for a stage full of political leaders -- one of whom could end up being the president of the United States -- being silent when an American soldier is booed. We don't believe in that," said Obama to loud cheers and a standing ovation.

"We don't believe in standing silent when that happens. We don't believe in them being silent since. You want to be commander in chief? You can start by standing up for the men and women who wear the uniform of the United States, even when it's not politically convenient. We don't believe in a small America. We believe in a big America -- a tolerant America, a just America, an equal America -- that values the service of every patriot."

Notably at Saturday's dinner, there was a table filled with servicemembers -- both active-duty and retired -- wearing their uniforms. HRC spokesman Michael Cole-Schwartz said it was a first for active-duty members to do so, since it's also the first post-DADT dinner.