"Just the other day they came out with a statement that 85% of the people
that wear masks catch it so ... that’s what I heard and that’s what I saw."
-- Trump, a few minutes ago at a NBC-TV Town Hall
That's his parsing a study of a small group of COVID-19 patients who said they wore a face mask at times during the period they suspected they became infected. Many in the same group said they ate at a restaurant and were around multiple people at home, both situations where their masks were off.