If the owners (or renters) of the property want her and her sign out of there, they have the right to do so. Whether or not the powers that be in that situation support McCain or not, they still have the right to give her the boot. I surprised that after all those years of experience you'd think that she would understand. It's about expressing her opinion on property that isn't public... that's the issue. If someone was standing on my lawn and expressing their "freedom of speech" rights, I would do the same thing.