grapevine texas u.s. immigration authorities sign deal monday 18 texas 254 counties expand program allow jailers local sheriffs offices cooperate federal authorities immigration enforcement deal sign sheriffs meet suburban dallas come administration u.s. republican president donald trump texas populous republican-controlled state seek crack sanctuary cities place shield immigrants country illegally u.s. immigration customs enforcement reach know 287 agreement counties deal train local agents sheriff offices check people custody may violation u.s. immigration law program book since 1996 allow department homeland security enter formal write agreements state local police departments officer perform function federal immigration enforcement officials doubt arrest removable alien jail safe officer safe community even safe alien act ice director tom homan tell news conference a.j louderback sheriff jackson county tell news conference county southwest houston join program control criminality sheriff harris county populous county state home houston drop program early year say cost office much term manpower money many 18 counties total population 1.5 million near harris county texas population 28 million new agreement texas jail task force model program use allow police patrol check people immigration status civil right group contend method promote illegal racial profile former president barack obama administration wind task force model six new agreements add 2012 2016 accord ice part homeland security addition 18 program texas ice 60 active 287 agreements nearly double number program active 2016. mandate expand program outline executive order immigration enforcement sign days trump take office january trump administration reach deal texas counties immigration