Malamed founded The Next 50
First lady spoke at annual gathering in Arlington, Va.
LGBTQ rights organization holds gala event and awards ceremony
Congressional Republicans are trying to roll back progress, the president said.
Wyo. college student brutally murdered in October 1998
Group's national dinner taking place in DC on Saturday
First lady will also deliver remarks
Calif. Democrat elected to U.S. Senate in 1992
Trump loyalist feted by mainstream media after belated change of heart
Pulse survivor Brandon Wolf among those who spoke
