tonight in 2020 vision, our new national nbc wall street journal poll shows trouble for president trump. in head to head match ups, trump -- joe biden and elizabeth warren by nearly ten points. biden leads 50-41 while warren leads 50-42. perhaps more troubling for trump, 46% of registered voters say they're already certain to vote against him. versus the 34% who say they're certain to vote for him. despite this national lead for democrats, the battleground states are showing a much tighter race. trump continues to remain highly competitive in six battleground states that went red in 2016. and are most likely to decide his re-election in 2020. michigan, pennsylvania, wisconsin, florida, arizona, and north carolina. according to a new poll, across those six key states, biden is running even with donald trump in michigan. up slightly in four states and trailing in north carolina. sanders is pretty much