May do a bit in certain circumstances such as in the RG where pols like Lee and Christie were hugging folks left and right.
And certainly makes them targets as the contract tracers and the rest of the concern army try to zero in.
Personally I suspect infiltration/sabotage at the WH somewhere and somehow.
Masks don’t work against viruses, period. They are like trying to stop flies with a chain link fence. Anyone who tells you different is either uninformed, misinformed, or lying.
Anyone wearing a mask to prevent a virus spread is engaged in performative theater.