Gallegly is not in the proposed (clt; promise) conference bill/’ said Rep.Garcia Abrego called ‘the boss’By MARISA TAYLOR The MonitorHOUSTON — A Rio Grande Valley drug smuggler testified in federal court Tuesday that Juan Garcia Abrego was considered “the boss” of a cocaine pipeline that at times relied on cooperative Border Patrol officers at the agency’s Sarita checkpoint.The testimony marked only the second time during two weeks of trial that a witness implicated Abrego, nicknamed “El Seftoras directing the vast drug enterprise out of Matamo-ros and into the United States.Jaime Rivas Gonzalez testified he once believed Luis Garcia Medrano — a high-ranking member of the so-called Gulf Cartel — was the head of the (See TRIAL, Page 2)UaI 4 AC Ua A7