Kip himself has acknowledged that DL's advocacy policy is the issue with which he was told he must comply and about which he did not. I can't reproduce DL's advocacy policy here but you can certain access it if you have doubts about it. I can reproduce this paragraph from the article which you linked and which provides the details from Kip, not DL, about the issues involved. "In early 2012, Hedges said he was questioned by Delta management after he made critical comments about Delta’s use of part-time workers in ground jobs. Later, Hedges said he was given a “final warning” for violating Delta’s “advocacy policy” for attempting to get workers to sign union authorization cards. His appeals were denied." again, Kip may be trying to regain lost wages etc based on his assertion that DL's internal policy violates federal law but I will strongly bet that DL has more than carefully made sure its internal policy does meet federal laws. and if it doesn't, the court hearing Kip's case will not overturn DL's policy and even if that court decides to challenge DL's internal policies, the case will go to an appeals court because it is outside the scope of Kip's case.