consequences and very strongly. so the concern now is what that means. officials have said they will retaliate with something appropriate, but did not define that. that is why democrats on the hill are especially concerned. tonight, we know that vice president mike pence has briefed nancy pelosi and chuck schumer. pelosi has just tweeted she s closely monitoring the situation, and she is worried about needless provocations from the administration. so as we have been reporting, the big question and concern is just how far the administration will go to retaliate. norah? weijia jiang at the white house where the president is gathered with his national security team in the situation room. we ll be right back.
the vast, vast majority of those patients are unvaccinated. reporter: here at houston methodist, they expect delta to make up 90% of cases in the next two to three weeks, and they say, generally, the patients are young. major. garrett: with the march of delta, janet shamlian, thank you. tonight president biden says there is no mission accomplished as u.s. troops leave afghanistan after nearly 20 years of war. hasn t failed, yet. the president set august 31 as the date nearly all of u.s. troops will finally be out of afghanistan even as it appears that country is descending into civil war. two reports with cbs s weijia jiang at the white house. reporter: good evening to you, major. president biden said uniting afghanistan was not the end goal, and he insisted that the u.s. did what it set out to do, it hunted down osama bin laden and eliminated the threat of