Why has the Republican Party become a systematic enabler of terrorism?

Don’t pretend to be shocked. Just look at G.O.P. responses to the massacre in El Paso. They have ranged from the ludicrous (blame video games!) to the almost honest (who would have expected Ted Cruz, of all people, to speak out against white supremacy?). But as far as I can tell, not one prominent Republican has even hinted at the obvious link between Donald Trump’s repeated incitements to violence and the upsurge in hate crimes.

So the party remains in lock step behind a man who has arguably done more to promote racial violence than any American since Nathan Bedford Forrest, who helped found the Ku Klux Klan, a terrorist organization if there ever was one — and who was recently honored by the Republican governor of Tennessee.

Anyway, the party’s complicity started long before Trump came on the scene. More than a decade ago, the Department of Homeland Security issued a report warning about a surge of right-wing extremism. The report was prescient, to say the least. But when congressional Republicans learned about it, they went on a rampage, demanding the resignation of Janet Napolitano, who headed the agency, and insisted that even using the term “right-wing extremism” was unacceptable.

This backlash was effective: Homeland Security drastically scaled back its efforts to monitor and head off what was already becoming a major threat. In effect, Republicans bullied law enforcement into creating a safe space for potential terrorists, as long as their violent impulses were motivated by the right kind of hatred.