WATCH: Gavin Newsom vs. 'Homo Sex Is Sin'

While in Washington, D.C., for the Supreme Court hearing on marriage equality, California lieutenant governor and former San Francisco mayor Gavin Newsom not only tweeted his support for marriage equality but filmed a video in front of the smattering of antigay protesters.

"These folks used to track me down wherever I went," said Newsom, standing in front of and gesturing to demonstrators carrying a sign reading "Homo Sex Is Sin" outside the U.S. Supreme Court

Newsom, who made history and drew the ire of the right wing when he ordered San Francisco clerks to begin issuing marriage licenses to same-sex couples in 2004, said he "has every confidence" that Supreme Court justices are "going to do the right thing, and they're going to temper the hate that we're hearing here and advance a principle that is universal and foundational in America. And that is we're all in this together, we're all better off when we're better off, and we're going to right the wrongs in those 14 remaining states."

Watch Newsom's reasoned argument overpower the antigay rants of so-called religious protesters behind him: