- Julian Zelizer: Tweets reveal a great deal about what Trump thinks of scandal
- These 140-character commentaries offer troubling signals of what's ahead, he says
Julian Zelizer, a history and public affairs professor at Princeton University and a CNN political analyst, is the author of "The Fierce Urgency of Now: Lyndon Johnson, Congress, and the Battle for the Great Society." He's co-host of the "Politics & Polls" podcast. The opinions expressed in this commentary are his own.
(CNN)President Donald Trump blasted off two more angry tweets Thursday morning in response to the appointment of former FBI Director Robert Mueller as special counsel to oversee the federal investigation into Russian interference in the 2016 election.