US ambassador to Russia warned senators that Biden administration risks repeating predecessors' mistakes in dealing with Putin

The day before the White House announced that President Joe Biden and Russian President Vladimir Putin would hold their first in-person meeting in Geneva, Switzerland, the US ambassador to Russia privately told lawmakers he's worried about Washington giving concessions to Moscow without getting anything in return.

In a two-hour briefing to the Senate Foreign Relations Committee in May, described to CNN by two people familiar with the matter, Ambassador John Sullivan suggested that Putin is not acting in good faith with the US and the Biden administration risks repeating the same mistakes of its predecessors if it does not approach the issue with clear eyes, according to one of the sources.

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