ukraine says its open attacks are taking a toll on russia s war machine and a major counteroffensive could begin at any moment. a dire warning as the ceo of an artificial intelligence company testifies on capitol hill. quote, if this technology depose wrong, it can go quite wrong. we know ai is going to change the world, but how, how quickly, how much, no one quite knows. with the u.s. on the brink of defaulting on its debt, lawmakers are digging in at the white house. those talks in just two hours. we are following those major developing stories and many more all coming in right here to cnn news central. amid a barrage of missile and drone attacks in kyiv overnight, russia is making a major claim that it targeted and destroyed one of these, an american-made patriot air missile defense system. a u.s. official tells cnn it was likely damaged but not destroyed. ukraine is not commenting, but it says that its air defenses worked against the large-scale attack, intercepting