Delegates join celebrities and politicians to celebrate the nomination of Kamala Harris
Danica Roem, Sarah McBride among attendees
Pete Buttigieg speaks at Chicago event
GLSEN holds New York City rooftop concert
Marcia Gay Harden presented with Advocate Award in New York City ceremony
Annual event aims to āinspire a lot of people to get activeā
Several events planned in coming weeks
Advocacy group is 33 years old
Gala took place in New York on June 5
Annual fantasy, sci-fi convention features LGBTQ celebrities