White House LGBTQI+ Safety Partnership 'ramping up'
Former vice president announced decision to drop out in Las Vegas
'It is vital to remember our collective past'
Johnson did not become more moderate in Congress
Some say House GOP members in vulnerable districts will suffer political consequences
TV host and reality star will make a special appearance at the event
Other Republican lawmakers treated activists well
Malamed founded The Next 50
Conversation comes after a week of battles over book bans on Capitol Hill
First lady spoke at annual gathering in Arlington, Va.