And it's very very likely that they got Covid because they came in contact with infectious people not wearing masks.
Their mask protects them at around 80%. Quite helpful but obviously not 100%.
Even wearing a mask, Rudy or some other dumbass Trump supporter puts everyone they come in contact with at risk. Proximity, length of interaction and degree of infectiousness all play a role.
Almost a whole fucking year and you're still too stupid to comprehend how masks work and what the benefits are. That's really the issue, people on the Right not wearing masks aren't just assholes but stupid assholes unable to understand or care about the risks involved.