THIS EPISODE: Donald Trump faces a “referendum environment” in the 2020 election, as women voters among other groups are increasing their turnout, comparable to the 2018 midterm elections, political forecasting expert Rachel Bitecofer tells María Teresa Kumar.  AND: Joe Biden now leads Donald Trump in 2020 with seniors and white women, groups that Democrats typically do not outperform Republicans in, political pollster Terrance Woodbury says. Plus, Florida politics and what could happen in this critical state are discussed by Mitch Ceasar, former chairman of the Florida Democratic Party. NEXT: The Donald Trump administration’s child separation policy is now a key 2020 issue, in the wake of reports that over 500 separated children’s parents cannot be found. PLUS: Donald Trump's taxes as reported on by The New York Times, which includes discussions of a Chinese account linked to the president, plus his reported relationship to Deutsche Bank, are analyzed by journalist David Cay Johnston, an expert on Donald Trump’s financial dealings. ADDITIONALLY: U.S. Senate candidate for Mississippi Mike Espy joins AM JOY, before we take you to Joe Biden’s Pennsylvania stump speech. All this and much more in this Saturday edition of AM JOY on MSNBC.