Board's determination that a series of CBA recitations of exclusive representation was sufficient to establish sufficient employee support for the union when initially certified pre-hire was insufficiently reasoned and an abuse of discretion.
https://www.cadc.uscourts.gov/internet/opinions.nsf/C8F18CF446B7250D852582A600522CF6/$file/16-1261.pdf
Since 2011. An occasional commonplacing of the U.S. Circuit Courts of Appeal.
Neither an authoritative statement of the law nor legal advice. Quick work.