The Right to Assemble is guaranteed under the First Amendment of the USA Constituion.

Collective Bargaining is a legal form of assembly.  Collective Bargaining is the most effective way to protect public workers' rights and well being.  That is a fact.  They provide valuable service to the public.  They have a right to their pay and benefits. 

The State of Wisconsin in acting in contempt of court, when will the Federal Justice Department step in to investigate and make arrests?

...But outside the courtroom, Assistant Attorney General Steven Means said the legislation "absolutely" is still in effect. The statement by Means - the executive assistant to Republican Attorney General J.B. Van Hollen - shocked Assembly Minority Leader Peter Barca (D-Kenosha).
"It's just startling that the attorney general believes you should not follow court orders anymore," he said.
In a later statement, Department of Justice spokesman Bill Cosh said: "We don't believe that the court can enjoin non-parties. Whether the Department of Administration or other state officers choose to comply with any direction issued by Judge Sumi is up to them."...

It doesn't matter what the Walker Administration 'believes.'  It matters what they can set before a judge to prove their case.  Until they can prove their case they need to ABIDE  BY  THE  LAW.

This is treasonous.  Contempt of court and the Wisconsin governor blows it off as an inconvenience.  What?

I really believe there has to be federal intervention with this situation.  Evidently nothing the State of Wisconsin orders matters to them.  It reminds me of Governor Wallace when he attempted to obstruct students from entering a university.  The federal marshalls had to intervene.  I sincerely believe something of that nature has to take place here.  Walker and his administration are out of control and pandering as 'power brokers' to their cronies, namely The Koch Brothers whom are also attempting to create a monopoly of utility plants in Wisconsin.