South Carolina U.S. Representative Nancy Mace 's former aide ripped into the Republican Wednesday over her efforts to ban transgender lawmakers from using restrooms in the U.S. Capitol that correspond to their gender identity.

A prominent digital rights activist, who is transgender, confronted Rep. Nancy Mace at a public event Thursday.

Rep.-elect Sarah McBride became the first transgender person elected to Congress when she won the race for Delaware's only House seat two weeks ago.