Regardless of whether it's in the public or private sector, the point is that authority favors free speech opposing Scott Walker, while harassing, banning and silencing free speech supporting Walker. By individuals in the public sector, using their power to bully private sector contractors.
Another example is attempts at payback toward "Joe the Plumber" Wurzelbacher, using state offices and databases to humiliate and discredit him by by releasing state-owned confidential information about Wurzelbacher.
And in universities, where teachers, students and conservative guest speakers are silenced by harassment of public employees.
The contract cleaning company was pressured by public employees to get rid of the sign.