Dems seeks to harness energy of activist in March for Our Lives
Initiative launched amid speculation of 2020 run
Catholic leaders warn 'confusion arises' when high-profile figure deviates from church
Vice president says service not possible without 'Don't Ask' repeal
Says nation must continue to expand LGBT rights
Vice president endorses the Equality Act
VP to speak amid speculation he'll pursue a presidential bid
Vice president's support for LGBT rights highlighted
Vice president attributes decision to efforts of LGBT advocates
‘A generous, compassionate, bold and joyful people’
