Alexander Darchiev, Russia’s ambassador to the United States, died suddenly on Wednesday at age 66, Russia’s Foreign Ministry said.
The ministry described Darchiev as an accomplished diplomat, an experienced leader and a mentor. It said he had worked on one of the most demanding fronts of Russian foreign policy and offered condolences to his family and loved ones.
Russian President Vladimir Putin appointed Darchiev ambassador in March 2025. A veteran diplomat who had previously criticized the West in public, he was tasked with helping improve relations with the Trump administration—a shift that has unsettled Ukraine, the European Union and NATO.
Darchiev’s death came less than a week after a White House news conference focused on a temporary ceasefire in the Russian-occupied Oleshky region of Ukraine. First lady Melania Trump and representatives from Russia and Ukraine welcomed the pause in fighting.
“We have chosen humanity over war,” Melania Trump said, adding that she hoped Oleshky could inspire broader progress toward peace. “Every significant transformation begins with a small spark.”
After his appointment, Darchiev met with Trump administration officials and spoke optimistically about the possibility of peaceful relations between the two countries. At a Russia Day reception at the Russian Embassy in Washington on June 10, 2025, he said the two powers were “destined” to coexist peacefully and described discussions with U.S. officials as constructive.
Before becoming ambassador, Darchiev was involved in sensitive negotiations between Moscow and Washington, including talks that led to prisoner exchanges involving Russian arms dealer Viktor Bout and Americans Brittney Griner and Paul Whelan.
In August 2022, while heading the Russian Foreign Ministry’s North American Department, Darchiev publicly confirmed that the two governments were discussing the cases. He said the talks were being handled through channels designated by the countries’ presidents and that Russia had long sought Bout’s release.
The negotiations resulted in a one-for-one exchange of Griner for Bout in December 2022 at an airport in Abu Dhabi.
