Ugandan lawmakers passed anti-homosexuality bill last week
26-year-old congressman has been a gun violence prevention advocate since 2012
Measure passed by 213-208 vote margin
Measure would extend federal anti-discrimination protections to LGBTQ Americans
U.S. could impose economic consequences
Group urges Gov. Kemp to veto measure
Pence doubled down Thursday on homophobic remarks about the Transportation Secretary
Law 'stands in direct contrast to the overwhelming weight of the science'
Openly gay N.Y. congressman appeared on 'GMA3'
Group's former president was one-time Andrew Cuomo counsel