
Formulate an answer to this elaborate question: Silvestre "Silver" Reyes, is the former U.S. Representative for Texas 's 16 congressional district, serving from which span of years, in the Democratic Primary election on May 29, 2012, Reyes lost by a margin wide enough to avert a runoff election to former El Paso city councilman Beto O'Rourke?


1997 to 2013
