I just learned (from my colleague Jim Fishman, who, in turn, learned from the AALS Contracts listserv, which in turn referenced a post on the Volokh Conspiracy blog) that the Trump Campaign makes a volunteer sign an adhesion contract (perfectly legitimate, IMHO).  Among the terms is an arbitration clause, which itself may not be so legitimate:

Arbitration. Without limiting the Company’s or any other Trump Person’s right to commence a lawsuit in a court of competent jurisdiction in the State of New York, any dispute arising under or relating to this agreement may, at the sole discretion of each Trump Person, be submitted to binding arbitration in the State of New York pursuant to the rules for commercial arbitrations of the American Arbitration Association, and you hereby agree to and will not contest such submissions. Judgment upon the award rendered by an arbitrator may be entered in any court having jurisdiction.

Unless I am reading it wrong, the clause appears to impose arbitration on the volunteer at the election of the Campaign, but does not require the Campaign to submit to arbitration at the demand of the volunteer.  I wonder whether a court would enforce this provision? (sarcasm font).