Ohio widower had endorsed Clinton in 2016
Decision announced just days before Super Tuesday
Former VP declared victory immediately as polls closed
Feet-dragging over needle exchanges led to nearly 200 new cases
Trump appointee was scheduled to speak Friday as of Thursday afternoon
'I wish I had been stronger in my response'
2020 hopeful met with San Fran mayor, trans leaders
Trump administration's anti-LGBTQ policy highlighted in testimony
2020 hopeful assailed for 'appalling' proposed budget reductions
Gay candidate calls for racial justice, but struggles with minorities