Galveston County Daily News (Internet/Print) 03/14/06 Today opens an intense month of campaigning as candidates for mayor and the city council seek to chart a path for city government. Monday marked the deadline to file for office. City elections will be held May 13. In the mayor’s race, Mike Mehlman, a newcomer to politics, is challenging incumbent Lyda Ann Thomas. Mehlman, 71, is an environmental toxicologist with professorships both at the University of Texas Medical Branch and on the East Coast. However, he said, if he’s elected, he’ll live in Galveston full time.