CLOQUET, MN (KDAL) - Union employees at the Sappi Paper Cloquet mill voted Tuesday to authorize their leadership to call a strike, if needed, in a wage dispute with the company.  The workers are represented by United Steelworkers Local 63.  In a release on Wednesday, Rick Dwyer, Managing Director of the Cloquet mill said he was "disappointed in the membership's action given our fair and competitive contract package."  Sappi is currently converting the pulp mill to specialized cellulose plant