The CAA (which is what Rose McGowan is talking about here) is a global talent representation firm. It covers a massive proportion of media and talent.

This same firm, per a leaked email, blacklisted Tulsi Gabbard after her endorsement of Bernie Sanders in 2016. https://twitter.com/abelbc85/status/1245796987351547909

2/ Here is the leaked email. Michael Kives and Darnell Strom were both, at the time, executives in the CAA.

3/ 3/ Alyssa Milano is a client of the CAA. So is...

Anderson Cooper
Ana Navarro
Bill Maher
Chris Cuomo
Dan Pfieffer
Donna Brazile
Jimmy Fallon
Joe Biden
Martha Raddatz
Stephen Colbert
Van Jones
Whoopi Goldberg
Trever Noah
Seth Meyers

To name a few...