Republican Max Linn — twice rebuffed in state courts — continued his fight for inclusion in next week’s U.S. Senate primary election with a lawsuit filed Monday in federal court. The new suit, filed in U.S. District Court by 14 of Linn’s supporters, seeks to block Secretary of State Matt Dunlap from ordering municipal election clerks to post notices at polling locations to inform voters that even though Linn’s name appears on the ballot, votes for him will be counted as blanks.