Cautious optimism after Russia cites troop pullback

Russia says some military forces are returning to base after completing drills, and Vladimir Putin -- after meeting with Germany's leader Olaf Scholz -- says there's room for further discussion. Dmitri Trenin, Director of the Carnegie Moscow Centre, joins Christiane to analyze these latest developments ... Former Finnish Prime Minister Alexander Stubb offers insight into Putin's thinking ... Former US Ambassador to NATO Kay Bailey Hutchison offers her perspective.

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