As the director of the North America Department of the Russian Foreign Ministry, he participated in contacts that led to prisoner exchanges, including the cases of U.S. basketball star Brittney Griner and former Marine Paul Whelan, detained in Russia, and Russian arms dealer Viktor Bout.
In August 2022, Darchiev publicly confirmed that both governments were in talks to finalize a prisoner exchange.
The Russian ambassador to the United States, Alexander Darchiev, died suddenly this Wednesday at the age of 66, as confirmed by the Russian Ministry of Foreign Affairs. His death, announced without details on the causes or circumstances, raised questions about the timing, as Moscow and Washington maintain diplomatic contacts to reduce bilateral tensions and move towards a negotiated resolution of the war in Ukraine.
The Russian Foreign Ministry communicated the news through an official statement in which it expressed its sorrow over the diplomat's death, although it did not provide information about possible health issues, the exact location of the death, or the circumstances leading up to the incident.
''The leaders and staff of the Russian Ministry of Foreign Affairs report with deep regret that on November 11, at the age of 66, the extraordinary and plenipotentiary ambassador of the Russian Federation to the United States, Alexander Nikitich Darchiev, passed away suddenly,'' the statement noted.
The Russian ambassador to the United States died unexpectedly and a cause of death has not been determined
A key diplomat in the rapprochement between Moscow and Washington
Darchiev had been appointed by Russian President Vladimir Putin in March 2025 to head the embassy in Washington. His appointment was part of the Kremlin's efforts to rebuild communication channels with the administration of President Donald Trump, amid deep differences over Ukraine, European security, and international relations.
The diplomat was considered a veteran specialist in U.S. affairs and had previously made critical public statements towards the West. His main responsibility in Washington was to facilitate a bilateral rapprochement after years of deteriorating relations between the two powers.
Shortly after taking office, Darchiev met with officials from the Trump administration and expressed his expectation that both countries could overcome the confrontation.
''Russia and the United States are destined, as great powers, to coexist peacefully and without confrontation,'' he stated on June 10, 2025, during a reception for Russia Day at the Russian embassy in Washington.
On that occasion, he also described the discussions held with U.S. representatives as constructive, after having presented his credentials to the White House.
Putin appointed Darchiev to deepen the Kremlin's diplomatic relations with the United States
His role in prisoner exchanges
Before assuming the diplomatic representation in Washington, Darchiev had played an important role in the most sensitive bilateral negotiations between Moscow and Washington.
''This quite delicate issue of exchanging convicted Russian and American citizens is being addressed through the channels designated by our presidents,'' he declared at that time to the Russian state agency TASS.
The negotiations culminated in December of that year with an exchange of Griner for Bout at an airport in Abu Dhabi.
The former Russian ambassador had played a leading role in several prisoner exchanges with the United States
A death at a delicate diplomatic moment
Darchiev's death comes less than a week after a press conference at the White House where a temporary ceasefire was celebrated in Ukrainian territory occupied by Russia, in the Oleshky region. U.S. First Lady Melania Trump and representatives from Russia and Ukraine highlighted the agreement as a possible humanitarian breakthrough.
''We have chosen humanity over war,'' Melania Trump stated, expressing her hope that the understanding would contribute to fostering broader peace.
Darchiev's death represents the loss of a diplomatic representative who had been directly involved in some of the most important contacts between the two powers.
For now, the Russian Foreign Ministry has not explained what caused his sudden death. No investigations have been announced, nor have there been indications of suspicious circumstances. The lack of concrete information necessitates caution against any speculation, but leaves an essential question pending: what exactly happened to one of Moscow's most important diplomats in its strategy of rapprochement with Washington.
Melania Trump highlighted progress in talks to end the war in Ukraine