Russia can no longer finance its war against Ukraine. Europe generates 30% of Russia’s income by buying its oil and gas. What happens when Russia loses its biggest export customer? And Oil prices drop from the current $55 to $19 a barrel? And America replaces Russia as Europe’s energy supplier at half the price? Russian President Vladimir Putin just got trumped by President Donald J. Trump. The war in Ukraine is about to end. On Trump’s timetable, not Russia’s.