Despite a low turnout, National Organization for Marriage (NOM) President Brian Brown told supporters that Saturday's March for Marriage was a “tremendous success.”

“I'm writing with great news – the 2016 March for Marriage this past Saturday in Washington was a tremendous success!” Brown wrote in a fundraising letter. “We had about 400 people join us at the rally and march and they were an enthusiastic and inspiring group of supporters!”

According to a head-count by ThinkProgress, fewer than 250 people, including passersby and children, made it to the event.

This year's annual march was the first since the Supreme Court ruled in Obergefell v. Hodges that gay and lesbian couples have a constitutional right to marry.

At the event, Brown described marriage rights for gay couples as a “profound lie” similar to slavery and compared opponents of marriage equality to abolitionists.

(Related: NOM's Brian Brown compares opponents of gay marriage to abolitionists.)

Brown added in his letter that he expected that “the crowd would be smaller than past marches because people are still grieving from the U.S. Supreme Court's illegitimate decision redefining marriage” and that attendance would increase as “word spreads.”