The U.S. State Department says recent comments by the U.S. ambassador in Moscow have been "misinterpreted or misunderstood" by his hosts.
Earlier on May 29, Russian presidential aide Vladimir Ushakov said Ambassador Michael McFaul needs to behave more diplomatically and not jeopardize his country's ties with Russia.
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On May 28, the Russian Foreign Ministry targeted McFaul for saying at a May 25 meeting with students that Russia had offered money to the leader of Kyrgyzstan for removing a U.S. air base from its soil.
The ministry also accused McFaul of misrepresenting Russia's stance on such international issues as the Iranian nuclear standoff.
In her comments, U.S. State Department spokeswoman Victoria Nuland said McFaul, a former academic, “speaks plainly, he speaks clearly, he doesn't mince words, he's not a professional diplomat."
Based on reporting by AFP and RIA Novosti