Hillary Clinton's campaign is scrambling to head off lasting damage from her brutal weekend, with aides promising to release more of her medical records following her bout of pneumonia and conceding they were too slow in providing information about her condition, the AP reports. Clinton abruptly left a 9/11 anniversary event Sunday in New York and was seen on video stumbling and being held up by aides. After roughly 90 minutes of silence from her campaign, aides said Clinton left because she was overheated. Several hours later, her doctor acknowledged she had been diagnosed with pneumonia two days earlier. "In retrospect, we could have handled it better," Clinton spokesman Brian Fallon said Monday. He pledged to release "additional medical information" about Clinton in the next few days. Much more on the fallout here and here. (More Hillary Clinton stories.)