If they do, I doubt it will be reported unless it has to be.
Trump only does what helps get him reelected. So many infected people looks incompetent, which it is. But that's why he'll want to conceal it.
Same goes for McConnell.
It wouldn't surprise me if the debate prep team gave it to the people at the garden party. Four out of eight (ie half) of the preppers got it, which is a higher proportion than garden partiers. So more likely to have moved from that group into the party than vice versa.
I'm thinking one of those four was the superspreader. Wouldn't it be delicious if Kellyanne Conway's daughter was the symptomless carrier?