'Grow up': Biden slams lawmakers who refuse masks
Four U.S. Representatives said they tested positive for COVID-19 following a mob attack on the U.S. Capitol last week.
The recent diagnoses have become a partisan issue, with Democrats blaming Republicans for not wearing masks while sheltering in secure areas on Jan. 6, as violent supporters of Republican President Donald Trump stormed the building.
But only Democrats have reported testing positive as a result of the emergency so far.
Biden has promised to do better than Trump to curb the virus, and he asked Americans on Friday to "mask up" as he worked to get 100 million vaccine shots in arms during his first 100 days in office.
