Dana Milbank observes in The Washington Post:
‘Trump’s impeachment provoked him to descend still deeper into the depths of demagoguery. His impeachment-night campaign speech — just over two hours long — was an alarming blend of instability and rage….’
I would add that it appears to be not merely a descent into demagoguery but into mental instability. Even with the vanishingly slim odds of conviction and removal from office in the Senate, perhaps as his decompensation proceeds the Amendment 25 Section 4 process for removing a President when deemed too disabled to discharge his functions will become more possible?