C'mon man!.. I don't have to write up a story explaining anything... Why the fuck would they invite her instead of a long list of others that should be going to the white house or wtv.
Calling it now.. they're going to use her to promote the vaccines "safety" and "efficacy" and she will basically parrot wtv is said to her back to the masses of sheeple.
You dont blackmail whores.you do a photo op find out her price and she tells the kids to go get there shot