Twitter suspended now-former President Trump’s account shortly after the Jan. 6 riot at the U.S. Capitol. While election-related disinformation online has diminished a bit since then, falsehoods about the election and COVID vaccines remain popular.

SAN ANSELMO, CALIFORNIA – JANUARY 08: The suspended Twitter account of U.S. President Donald Trump appears on a laptop screen on January 08, 2021 in San Anselmo, California. Citing the risk of further incitement of violence following an attempted insurrection on Wednesday, Twitter permanently suspended President Donald Trump’s account. (Photo Illustration by Justin Sullivan/Getty Images)