Should Democrats be freaking out about their presidential field? ... The base activation strategy vs. the swing voter strategy ... Who are the top tier candidates, and who could still enter the top tier? ... How would a Trump-leaning swing voter view the Biden-Harris dustup? ... Why Warren may have the winning message ... Has Warren put the "Native American thing" to bed? ... Who would do best against Trump on the debate stage? ... Trump's "go back" tweet as a new low ... By attacking Biden now, is Trump being crazy or crazy like a fox? ...