Ketanji Brown Jackson "was absolutely beaming" while Samuel Alito was less thrilled.
She was one of the only elected members of Congress to appear at his conference in February.
Kolbe, who retired in 2006, reluctantly came out ten years earlier as The Advocate prepared to out him as a hypocrite for his support of DOMA.
Organizers said police did nothing to protect those participating in the event from the hate group.