Jill Biden spoke in Arlington, Va., on Friday
Several events planned in coming weeks
Former first lady is close with the group
'I wouldn't be running unless I thought I could win'
Annual commemoration falls on Easter Sunday this year
51 of 52 anti-LGBTQ riders were defeated
Proposal has only one rider that would target community
HHS launched effort in 2022
More than 40 were defeated
Federal appellate court hears cases from Mid-Atlantic
