Over the weekend, a new firestorm began brewing on the left after the Democratic National Committee (DNC) announced that it would not hold a “climate debate” as part of the upcoming 2020 presidential debates. Washington Governor and 2020 candidate Jay Inslee had requested the single-issue debate as a way to brandish his left-wing credentials. But on Saturday, chair Tom Perez said that the climate debate was not “practical,” after being pressured by eco-activists to weigh in. Inslee’s campaign pounced on Perez’s refusal to hold a climate debate, saying it diminishes “the organizing effort of our partner progressive organizations who have been demanding…