Vladimir Putin

"This is a call that they had been planning to make in advance of President Biden going to Europe."

"I can't tell you whether I'm optimistic or not about the results."

"The Americans must assume that a number of signals from Moscow ... will be uncomfortable for them."

"The leaders will discuss the full range of pressing issues."

The meeting could happen in June, report says.

"Russia’s top diplomat has announced the country is expelling 10 American diplomats from the country."

"Everything will depend on the decisions made by the (Russian) head of state."

"We want a stable, predictable relationship."

Biden spoke to Putin on April 13.

Jinping and Putin were among 40 world leaders invited to the April 22-23 summit.

"He’s one of the guys, like Putin, who thinks that autocracy is the wave of the future."

"Another opportunity has been missed."

"Mr. Biden's statements about Mr. Putin are not fitting of a president."

"The psychological meaning here is very deep."

"I suspect it will not be the last one if no explanation or apology follows from the American side."

"He will pay a price."

"No facts or specific evidence of such claims were provided."

"Will all these internal controversies end there or not?"

"We want a future where all nations are able to freely determine their own path."

The United States, Britain, Germany and the EU urged Moscow to immediately free Navalny.