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?
Sentence (from "Beto O'Rourke"): Robert Francis "Beto" O'Rourke (born September 26, 1972) is an American politician, businessman, and the U.S. Representative for Texas's 16th congressional district in his native El Paso.
Relevant evidence: Yes