The public debate over COVID-19 has been dominated, understandably, by the pandemic’s impact on public health and the economy. However, there is a third impact that is dramatically underappreciated: the danger to democracy posed by pandemic-related disinformation, whether it is used to weaken democratic checks on power or interfere with elections. Disinformation—including by foreign state actors such as Russia—threatens to interfere with elections scheduled to take place in 2020 in Europe and the United States. Effectively countering these attempts requires strong trans-Atlantic policy and intelligence cooperation. U.S. President Donald Trump should abandon his dysfunctional approach to Europe and let the career professionals do their work.