N.Y. Times columnist David Brooks, "The End of The Two-Party System": "[T]he style of politics that Trump’s scarcity mind-set demands has been a disaster for conservative governance. He insists on perpetual warfare."

Why it matters: "All of this would be survivable if the mentality was going away in a few years. But it is not going away. The underlying conditions ... are only going to get worse. ... Trump will be succeeded by some other warrior."