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Happening now, breaking news.

Trump slams Putin saying he has gone absolutely crazy.

The Kremlin fires back, blaming emotional overload.

This escalation coming after major Russian attacks

killed dozens in Ukraine over the weekend.

Welcome to our viewers here in the United States

and all around the world.

I'm Alex Marquard.

Wolf Blitzer and Pamela Brown are off today,

and you're in the situation.

Thank you. Wolf Blitzer and Pamela Brown are off today, and you're in the situation. We begin this hour with breaking news, Ukraine, saying that this weekend, Russia launched its largest drone attack since the war erupted more than three

years ago, and President Donald Trump is now taking aim at Russian President Vladimir Putin,

a rare rebuke of Russia's leader.

Here's what he said on social media, quote, I've always had a good relationship with Putin,

...