How “Social Penumbras” Explain Shifts in Attitudes Toward Different Social Groups

America’s culture war surrounding same sex marriage, Republican Senator Rob Portman was an active warrior: in 1996 he cosponsored the Defense of Marriage Act, defining marriage as one man and one woman. Three years later he voted for a measure prohibiting same-sex couples from adopting children, and in 2011 Portman’s “openly hostile” record on gay rights led to a mass protest of students at the University of Michigan against his selection as speaker at the graduation ceremony. ….[READ]