The Chihuahua case did not retreat Monday. It plateaued.

No formal FGR determination surfaced in the morning research, and that absence is the point. PBS reported Sheinbaum demanding explanations after U.S. officials died while assisting in a Chihuahua operation. [1] AP placed the case in the CIA, drug-war and sovereignty frame. [2] The Rio Times kept the Mexican constitutional pressure alive. [3]

Sunday's paper said Day 3 FGR silence had hardened into the prosecutorial fact. Monday extends the same fact. Silence after a formal probe, Senate summons and prosecutor changes is no longer empty space. It is a position waiting to be named.

This is where Mexico City often does its hardest work: not in a single declaration, but in the narrowing corridor between sovereignty language and institutional action. Sheinbaum has said enough to make the case public. The prosecutors have not yet said enough to make the case judicial.

That gap is politically useful and dangerous. It lets the government hold Washington in the frame without committing to a charge it may not be ready to prove. It also lets critics say the sovereignty claim is rhetoric unless FGR turns it into a document.

The divergence is that mainstream coverage treats the case as a bilateral wait. Mexican X treats it as a sovereignty plateau: the state has named the affront, summoned the machinery, and then paused where evidence must replace outrage.

The next artifact decides whether the plateau becomes policy or prosecution. An FGR determination would move the case into law. A Senate testimony fight would move it into politics. Continued silence would not close the case. It would reveal how much sovereignty pressure Mexico is willing to sustain without filing the next page.

Sheinbaum has not stepped back. But Monday shows that she has not stepped forward either.

-- LUCIA VEGA, Sao Paulo