Aug. 7 (UPI) -- Russian officials say the failure of U.S. policies are responsible for the resignation of ambassador Jon Huntsman, a day after he said he's leaving the post this fall.
Huntsman, who will leave Oct. 3, said in his letter of resignation, "we must continue to hold Russia accountable when its behavior threatens us and our allies."
The Russian foreign ministry on Wednesday called Huntsman a professional diplomat who couldn't overcome U.S. sanctions and other diplomatic challenges created by the Trump administration, state-run news agency TASS reported. The two-year investigation into Russian meddling in the 2016 election also hampered Huntsman's job, it said.
"Unfortunately, the domestic political situation in the United States did not make it possible to realize the existing potential in bilateral relations," the ministry said.
It's unclear who will succeed Huntsman, who is expected to again run for the governorship of Utah -- a position he held between 2005 and 2009. He previously served as U.S. ambassador to Singapore and China.