LONDON -- Only moments after takeoff on a flight from Amsterdam to London, everyone on board, it seemed, had disappeared into a newspaper. With front pages from across Europe held aloft, a glance down the aisle showed one story dominated the news that day in dailies across the region, with another piece of news coming in a close second. Almost every front page showed a picture of Barack Obama or Hillary Clinton. Not far below the news from Denver, most papers featured unsettling news about Russia and the possibility of a new Cold War.

Once again, America and Europe stand on the same side of an international conflict. Once again, Europeans are finding inspiration from across the ocean. ...