A lawyer who represented the Trump campaign in a legal challenge to the Pennsylvania election results was forced out of his post last week as a law professor at Chapman University in California for representing President Donald Trump as a client. But what especially earned the ire of left-wing activists at the famous conservative legal scholar’s school was that John C. Eastman spoke alongside the president at the Jan. 6 “Stop the Steal” rally in Washington. Violence began at the U.S. Capitol during certification of the presidential election results while the rally was still going on at the other end...