Is it allowed to play a quorum card when it will have no effect?
For example, in the last game I played I was President and I had the cylon card that let me put someone in the brig when I revealed. The next in line for President was already in the brig, and I was holding the Presidential Pardon card.
If I had revealed and brigged anybody else, the new President would get my hand and immediately pardon the person I brigged. What I wanted to do was play my Pardon card, but not let anybody out of the brig. I just wanted to get it in the discard. Is this allowed? If I'm required to take someone out of the brig by playing it, can I still take an action to play it even if nobody is in the brig?