It is beyond my power of discernment to identify the most over-the-top comment criticizing President Trump’s decision to pull out of the Paris climate accord. But this tweet by a Harvard professor named Joyce Chaplin is surely a contender: The USA, created by int’l community in Treaty of Paris in 1783, betrays int’l community by withdrawing from #parisclimateagreement today. Chaplin teaches American Studies. Yet, she appears not to know how America was created. Ted Cruz reminded her: Just sad. Tenured chair at Harvard, doesn’t seem to know how USA was created. Not a treaty. Declaration+Revolutionary War+Constitution=USA. He added: Lefty academics...