Staking out a coherent foreign policy

In his Warsaw speech, President Donald Trump’s full-throated but prudent defense of “Western values” staked out as clearly as possible the principled grounds of a coherent and effective American foreign policy.
Although Trump’s Warsaw speech was not perfect, it was about the best a president could do amid the profound imperfections that now mar the Western alliance.
One caveat, though: This speech was so different from what Trump said in Saudi Arabia that it may speak mor