Did they play PINK FLOYD at the RNC?

[jberryhill]

6. The artist's opinions are rarely relevant

While an artist may object to the use of the work in a particular setting, it is usually the case that the recording is included in a licensing service which the copyright owner, even if the artist is the copyright owner, has authorized to grant package licenses for public performances.

That may, or may not, be the case here, but it is a typical arrangement that one pays a single fee to RIAA or ASCAP for use of a work for a public event, because the copyright owner of the recording has agreed to license through those agencies.

If you want to play Pink Floyd recordings at a public event, Roger Waters' opinion doesn't enter into the picture, since the licensing agent for those recordings is EMI:

http://www.emimusic.com/openemi/basic-rights/