evidence: Yet, Biden and Trump supporters also have very different opinions across many other topics likely to be focal points in the campaign: gender identity and sexual orientation, crime and policing, reproductive issues, the influence of religion on society and the changes that have transformed life in the U.S. in recent decades. [...] - Nearly all Trump supporters (90%) say gender is determined by sex at birth. By contrast, Biden supporters are more divided. About six-in-ten (59%) say gender can be different from sex at birth; 39% say gender is determined by sex at birth. - Nearly a decade after the Supreme Court legalized same-sex marriage, Biden and Trump supporters have starkly different views of the impact of that historic ruling. Biden supporters are about five times as likely (57%) as Trump supporters (11%) to say legalization of same-sex marriage is good for society.