This is a poll with a treasure chest of data. Once you get past the headline (Biden leads Trump nationwide by 5 points), and dive into the crosstabs, you discover huge, flashing, warning signs for the Biden 2020 campaign. Ignore the topline (Biden 48, Trump 43) because of too many methodological uncertainties in the poll design this far out. This is a poll of 1500 US Adult Citizens. Here are key points - Biden vs Trump for President: Among Blacks- Biden: 70% (ONLY); Trump: 13%. Note that 13% is a huge improvement, over 50% increase for Trump over the Black...