The people of Venezuela continue to suffer under socialist dictator Nicolás Maduro, who is sustained by his patrons in Cuba, Russia and China. So it’s welcome news this week that the Trump Administration has toughened sanctions against the regime and its abettors.

The executive order freezes Venezuelan assets in the U.S. and prohibits transactions—directly or indirectly touching the U.S. financial system—with individuals or entities of the Venezuelan government. U.S. national security adviser John Bolton told the International...