Don't know exactly when that picture was taken, but that's ridiculous! You can see Dr. Fauci, NIH, standing 3-4 people to the left of President Trump.
I assume and hope that this pic was taken prior to the issuance of the 6 foot "social distance" requirement.
I also assumed they had been tested and are negative, based on the expertise on that stage.
I doubt that you could stuff any more people on stage no matter how hard you tried to.