Until recently, Russia was the most important state seeking to undermine European institutions. Vladimir Putin has long disliked the EU because it restricts Russian companies’ ability to intimidate and bribe European political leaders and companies, and because the EU is larger and more powerful than Russia, whereas European countries on their own are not. Now a group of American oligarchs also want to undermine European institutions, because they don’t want to be regulated—and they may have the American president on their side. Quite soon, the European Union, along with Great Britain and other democracies around the world, might find that they have to choose between their alliance with the United States and their ability to run their own elections and select their own leaders without the pressure of aggressive outside manipulation. Ironically, countries, such as Brazil, that don’t have the same deep military, economic, and cultural ties to the U.S. may find it easier to maintain the sovereignty of their political systems and the transparency of their information ecosystems than Europeans.