Italy’s elections will shape the country’s response to economic stagnation, migration woes, and European integration, with repercussions across the continent.

Germany’s elections will determine whether Chancellor Angela Merkel remains in power, with ramifications for the migration crisis, the future of the European Union, and U.S.-German relations.

Charges of foreign power interference in the U.S. presidential election have raised grave national security concerns and touched off multiple federal inquiries that could drag on for months.