Good morning! Today is Thursday, October 15th 2026, and this is The American Conservative's Morning Brief. Trump's surprise diesel deal with Putin has shattered trust with Kiev, prompting Zelensky to call the arrangement dishonest and Trump to suggest Ukraine needs a new president, with Ted Snider arguing the real win for Moscow is decoupling U.S.–Russia diplomacy from the war itself. U.S. inflation climbed to 3.7 percent in September as Middle East conflict drove energy prices higher, even as Trump hinted at expanded action against Iran and the Saudi–Houthi war escalated with strikes on Riyadh and Aramco's headquarters. Kimberly Guilfoyle resigned as ambassador to Greece amid corruption allegations, including a reported request for $100,000 from a Trump donor in exchange for administration access. and now for the details. We begin with a diplomatic rupture between Washington and Kiev. Last Friday, while Ukrainian negotiators were meeting with U.S. envoys Jared Kushner and Steve Witkoff in Miami, President Trump announced he had struck a deal with Russian President Vladimir Putin. Under the arrangement, Moscow will lift its export ban on diesel fuel and supply hundreds of thousands of tons to the global market in the coming months, eventually totaling nearly five million tons. In exchange, the U.S. Treasury will issue a temporary general license allowing Russia to sell diesel through April of next year. Ukrainian negotiators left Miami in anger, skipped the second day of talks, and President Zelensky called the deal "not fair and not honest." Hours later, Ukraine struck a Russian oil refinery. Trump responded sharply, suggesting it was time for Ukraine to find a new president. As Ted Snider reports, the economic effects of the deal will likely be modest on both sides. Russia's diesel surplus would have found buyers anyway, and the volumes involved are small compared with daily global consumption. The real significance, Snider argues, is political and symbolic. Moscow has secured an economic arrangement with Washington without making any concessions in the Ukraine peace negotiations. That unshackling of U.S.–Russia diplomacy from the war, Snider writes, is the true Russian victory. Meanwhile, Witkoff and Kushner have warned Kiev that intelligence sharing could be cut, Elon Musk has backed Trump's call to replace Zelensky, and SpaceX has reportedly imposed limits on some Starlink services inside Ukraine, disrupting combat drone missions. Turning to the Middle East and its cost at home. U.S. inflation jumped to 3.7 percent in September, up from 3.4 percent the month before, as conflict in the Middle East pushed energy prices higher. The Bureau of Labor Statistics released the figures on Wednesday. It was the first monthly rise since May. President Trump, speaking at a campaign rally in Alaska, again hinted at expanded hostilities against Iran, telling the crowd, "Wait till you see what we do to Iran. We're gonna do a number." The Atlantic and other outlets have reported the White House has been pressing the Pentagon to prepare plans for imminent strikes, though Trump denied he would act before the November midterms. From Tehran, the naval commander of the Revolutionary Guards, Ali Ozmaei, challenged U.S. warships to approach the Strait of Hormuz, saying his forces were "impatient to sink American warships." As Andrew Day reports, the war between Saudi Arabia and the Yemeni Houthis also escalated Wednesday, with explosions heard in Riyadh and the Houthis striking the headquarters of Saudi oil company Aramco, pledging further attacks. The inflation data underscores how a distant war is beginning to reach into American household budgets. In Washington personnel news, Kimberly Guilfoyle, the U.S. ambassador to Greece, resigned Tuesday amid corruption allegations. The Wall Street Journal reported she engaged in repeated misconduct, including a threat against a host nation official and influence peddling. In one instance, Guilfoyle allegedly asked a Trump donor for one hundred thousand dollars to pay down her credit card bill, promising administration access in return. White House press secretary Katie Zacharia confirmed earlier Tuesday that the administration had asked Guilfoyle to step down. In her resignation statement, Guilfoyle thanked the president and denied wrongdoing, calling the allegations false and pledging to defend her reputation. President Trump addressed the matter later that day, saying, "She was doing a good job, but we didn't like what we were reading." Andrew Day has the story for TAC. Those are today's highlights. For the full stories and more, visit theamericanconservative.com. Thank you for starting your morning with us.