The main purpose of Donald Trump’s national security address Wednesday was to lay down the broad outlines of an approach to foreign policy. But one side effect was to torture Republicans one more time over the war in Iraq.

Speaking from a teleprompter in an ornate room in Washington’s Mayflower Hotel, Trump was far more diplomatic than he is in stump speeches, when he calls the war “a big, fat mistake.” But Trump’s critique of Iraq — and the Republican leaders who started and supported the war — was his most fundamental yet.