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Little about the failed strike on the retaliation strike on isis-k. what else have you picked up when it comes to congressional focus and congressional questioning? >> reporter: chuck, there was a disparity in terms of the questions asked by the republicans on the committee and the democrats. this is somewhat to be expected, but republicans focused heavily on the tactical misjudgments and errors of the last few months, democrats focused a little bit more on the way forward and to the extent that they looked back a number of them wanted to look back over the failures of the last 20 years, not j...

All be done. that's why we heard the president talk about what the u.s. will do after u.s. troops leave, continuing to try to get people out of afghanistan. john? >> it will not be done. that much is clear this morning. jeremy diamond, thank you very much. >> let's talk now with cnn national security analyst peter bergen. peter, the president is vowing a strike on isis-k. what would a u.s. response look like, do you think? >> well, i think -- i think that's kind of the ludicrous assertion. we're pulling out every troops, all u.s. troops and our intelligence assets are almost entirely gone. so ...

To come. >> probably some of our viewers, this is probably the first time they've heard of isis-k. what can you tell us about them? >> this is an offshoot from the taliban that broke away from the afghan taliban. hard to imagine how you get more radical than isis, but they are aggressive. this is a sign of what afghanistan is becoming now and will become even more so after the u.s. withdrawal, which is a giant magnet from extremists across the world. there are reports of thousands of fighters flying in from all around the country as far as the middle east. afghanistan is the new training groun...