that warning to congress. it hasn t happened in a year, but it s happening today just a few hours from now, president biden will be speaking face to face with china s president xi. what might come from today s critical summit? we ll have it. i m sara sidner with john berman and kate bolduan. cnn news central starts now. a senior israeli official says details are coming including footage later today of what s described as concrete evidence of a hamas terror headquarters in al shifa hospital and evidence uncovered in the ongoing raid by israel of that medical complex. idf troops, soldiers, they entered the hospital early this morning and hamas has now acknowledged that israel is in control of the hospital and gaza s large of the hospital. the idf already did release this video that we re showing you right here upon soldiers delivering incubators and other medical supplies to the hospital today they say and cnn has geolocated the video and however it is not on the grou