Twelve years ago, before the MAGA movement emerged on the right and the streets erupted in progressive protest from the left, we noticed something troubling in Congress: Our colleagues and constituents were getting angrier.
We saw it in the flushed faces at our town halls. We heard it in expletive-laden phone calls opposing the Affordable Care Act. We felt its toll in the increasing turnover of our burnt-out, battle-fatigued campaign workers. Most of all, we sensed it in the c...