The mass protests in Russia challenging the parliamentary vote reflect increasing hostility to Prime Minister Vladimir Putin and have the potential to change Russian politics in a fundamental way, sa…

Stephen Sestanovich, CFR’s top Russia expert, says the informal summit at Kennebunkport, Maine, restored nuclear issues as “the core of the relationship.”

President Obama’s cancelled state visit to Moscow next month is another indication that the so-called U.S.-Russia reset has derailed, says CFR’s Stephen Sestanovich.

Stephen Sestanovich, CFR’s top Russia expert, says President Vladimir Putin seems to be enjoying keeping the world guessing as to whether he will seek to become prime minister of Russia.

Stephen R. Sestanovich, a top Russian expert who served in the Clinton administration as ambassador-at-large and special adviser to the secretary of state for the newly independent Soviet states, sa…