Miami will host the first Democratic presidential primary debate Wednesday night ahead of the 2020 election. We preview the debate with NPR political reporter Danielle Kurtzleben. Also, critics of the GRE graduate school entry exam say the test seems to favor whiter, wealthier students. Minorities and poorer students tend to perform worse. A growing number of programs aren't requiring applicants to take the test. That and more, in hour one of Here & Now's June 26, 2019 full broadcast.