Maintenance workers tend to a JetBlue Airbus A320 in a JFK hangar in March. (Photo by Charly ... [+] TRIBALLEAU /AFP via Getty ImagesAs a top transportation union seeks to organize JetBlue mechanics and dispatchers, it has won backing from 160 members of Congress, who have charged the carrier with interfering in the effort.“It has come to our attention that there have been instances of anti-organizing interference at JetBlue from management,” the Congressional Labor Caucus said Wednesday, in a letter to Jet ...