Mexican President Claudia Sheinbaum used her constitutionally mandated second annual address to Congress on Tuesday, Sept. 1, to draw the sharpest line yet on how far her government will bend to pressure from Washington. Speaking from the National Palace, she told the nation that Mexican sovereignty "is not negotiated, not surrendered and not shared," a declaration that drew some of the loudest applause of an address that ran roughly 70 minutes and touched on 145 separate policy points. For the estimated 40 million U.S. residents who trace their roots to Mexico, a handful of threads buried inside that speech carry direct weight — from the security statistics families use to gauge conditions back home to Mexico's response to how its citizens have fared inside U.S. immigration custody.