U.S. Rep. Ciro Rodriguez of San Antonio vowed Thursday to designate the oldest highway in Texas as a national historic trail, hoping to end an ordeal that has dragged on for more than five years. "We're going to keep fighting this till we make it happen," Rodriguez said during a presentation at Mission San José. Rodriguez reintroduced El Camino Real de Los Tejas National Historic Trail Act in November, his fourth attempt since 1998 to push it through Congress. This time the designation would apply only to public lands and wherever private property owners consent. "As far as I know,...