Soledad O'Brien, others questioned the endorsement
Collecting demographic data on sexual orientation, gender identity
House, Senate approve measure now awaiting governor’s signature
Event took place on Saturday without incident
Incident occurred next to National Gallery of Art sculpture garden
Voting takes place on June 19
Measures ban anti-trans discrimination, youth conversion therapy
Trump's gay ambassador stirs controversy with remarks in favor of conservative movement
Survivors, victims' families remain vocal gun control advocates
Christian shop owners sought a First Amendment right to refuse service