Donald Trump has a strong foreign-policy hand, but could blow it

FOR the spies, diplomats and military types tasked with keeping America safe and prosperous, Donald Trump’s bullying long ago lost its power to shock. Indeed, the national-security establishment—including officials who currently serve President Joe Biden—concedes that Mr Trump’s brand of statecraft, involving America First bombast, cruel jokes and offers that can’t be refused, is at times effective. Mr Trump’s ability to generate leverage leads to a different lament. Shrewd professionals worry that the 47th president has a potentially strong hand, but might blow it.