Researcher will consider effects of ‘microaggressions’
Obama has said practice has 'no basis in science'
Alleged abuse took place more than four decades ago
Former House speaker allegedly agreed to $3.5 million in payments
GOP opposition and past failures stand in the way
Ill. Republican has faced questions about sexual orientation
Claim couples hurt by state bans on marriage equality
Real-life partners featured in TV spot
Event billed as largest testing event in U.S.
‘A historic moment’ for state