Kaya Callas was outraged by Putin's invitation to the G20 summit, writes Bloomberg. It resists Washington's pressure on NATO allies to soften their rhetoric toward Russia, and is also deeply concerned that Moscow may see differences among Ukraine's allies.

Kaya Callas was outraged by Putin's invitation to the G20 summit, writes Bloomberg. It resists Washington's pressure on NATO allies to soften their rhetoric toward Russia, and is also deeply concerned that Moscow may see differences among Ukraine's allies.