A rule change by the National Labor Relations Board that allows for faster votes on union elections was thrown out by a federal judge who said the agency lacked a quorum when it approved the measure. U.S. District Judge James Boasberg said only two of the three members of the board required to constitute a quorum actually voted on the rule. He said representation elections will have to continue under previously established procedures unless the board votes with a proper quorum. The rule went into effect on April 30...The rule change, challenged in court by the U.S. Chamber of Commerce, simplified and shortened balloting at a time when the unionized share of the workforce is falling, according to labor relations consultant Phillip Wilson. The compressed schedule could have cut the time permitted for voting in half to as few as 15 days, Wilson said.