On the eve of Trump’s historic impeachment trial, Harvard University’s Constitutional Law Scholar Laurence Tribe hammers his former Harvard colleague and Trump defense lawyer, Alan Dershowitz. Tribe says he is “very disappointed” in Dershowitz, adding he is taking a “Wizard of Oz” approach to impeachment by claiming his “client is the constitution of the United States.” Tribe calls for the attention to be taken off of the “Dersh-o-mania” of Trump’s defense arguments, and focus on the “solemn proceeding” of impeachment and Trump’s alleged “serious” crimes of “using his power to subvert the integrity of our elections.”