Good morning! Today is Wednesday, June 3rd 2026, and this is The American Conservative's Morning Brief. Mexican President Claudia Sheinbaum tightens her grip on Morena after Andy López Beltrán's departure and arms herself with a new constitutional weapon aimed squarely at Washington. Ted Snider warns the risk of direct NATO-Russia conflict may be at its highest point of the entire Ukraine war, with dangerous flashpoints emerging in the Baltics and over Kiev. and now for the details. We begin south of the border, where Mexican President Claudia Sheinbaum has tightened her grip on the ruling Morena party and is sharpening her tools for confronting Washington. Andrés "Andy" López Beltrán, the son of former President Andrés Manuel López Obrador, announced he is stepping down as Morena's secretary of organization to run for the legislature in Tabasco. His departure ends speculation that the elder López Obrador might one day return to steer the party from the wings. Morena now belongs to Sheinbaum, inside and out. As Joseph Addington reports for The American Conservative, Sheinbaum has used that authority aggressively. She has already overseen a sweeping constitutional reform that made Mexico's judiciary popularly elected, a structure tailor-made for a party with a supermajority and a powerful turnout machine. And last week, Morena ushered through the so-called "Monreal Law," a constitutional amendment that allows the government to overturn elections deemed tainted by foreign intervention. Addington writes that the amendment is aimed squarely at the United States. Two recent incidents pushed Sheinbaum to act: an April car crash in Chihuahua that exposed CIA officers running a clandestine operation on Mexican soil, and a U.S. Justice Department indictment last month of sitting Morena officials, including the governor of Sinaloa, for alleged ties to drug cartels. Mexicans are fiercely protective of their national sovereignty, and accusations that Morena is a "narcoparty" cut deep. The new amendment gives Sheinbaum a trump card in any showdown with Washington, and a convenient weapon against domestic rivals like the National Action Party, which governs Chihuahua and has campaigned on closer security cooperation with the United States. Addington cautions that Sheinbaum still has to play her hand carefully. The renegotiation of the U.S.-Mexico-Canada trade agreement is due to be signed in July, and the Trump administration is pressing for significant concessions. Turning to Eastern Europe, the risk of a direct clash between NATO and Russia may now be at its highest point of the entire Ukraine war. Writing for The American Conservative, Ted Snider recalls that back in November 2021, then-CIA Director William Burns and Russian President Vladimir Putin laid down what Newsweek called the "rules of the road": the United States would not fight directly or seek regime change, and Russia would limit its assault to Ukraine. Those guardrails are now being tested in two places. The first is the Baltics. Last month a Romanian F-16 based in Lithuania shot down a Ukrainian drone over Estonian airspace after it had passed through Latvia. Moscow accuses the Baltic states of allowing Ukraine to use their air corridors to strike deep into Russia, and claims Ukrainian drone-unit personnel have already been deployed to Latvia. Riga and Kiev both deny it. Putin has warned that Russia would treat any Ukrainian drone launch site as a legitimate target, even on NATO soil, and the Russian Foreign Intelligence Service pointedly reminded Baltic leaders that, in its words, NATO membership will not protect what it called "terrorist accomplices." The second flashpoint is Kiev itself. After a Ukrainian drone strike killed 21 students at a college in Russian-controlled Luhansk, Moscow announced systematic strikes on "decision-making centers and command posts," including underground military bunkers where, Snider notes, American and European officers are believed to assist with targeting. Russia advised Western diplomats to leave Kiev, with Foreign Minister Sergey Lavrov personally raising the matter with Secretary of State Marco Rubio. Massive strikes on Kiev on May 23rd and again on Tuesday featured hypersonic missiles, and the city's once-formidable air defenses are degrading as U.S. Patriot interceptors are diverted to the war in Iran. Snider argues the United States would be wise to press both Ukraine and the Baltic states against launches from NATO territory, and to recommit, urgently, to serious peace talks. Those are today's highlights. For the full stories and more, visit theamericanconservative.com. Thank you for starting your morning with us.
