With Hillary Clinton in the hot seat for delaying the release of her pneumonia diagnosis, her campaign manager on Wednesday explained the move, while blasting Donald Trump for not releasing detailed medical records.
In an interview on CNBC's "Squawk Box," Robby Mook said Clinton had tried to "power through it," because she "originally didn't want this to disrupt the campaign."
"When she became overheated on Sunday, it was clear she needed to take some down time," he added, referring to her abrupt departure from a Sept. 11 memorial ceremony in New York City.
The Clinton campaign on Sunday initially blamed her departure on being "overheated," but later revealed she had been diagnosed with pneumonia two days earlier.
Meanwhile, Mook described Trump's health disclosures thus far as a "joke," arguing the GOP presidential nominee "has not released a single, serious health record."
Trump told CNBC on Monday he plans to release a more comprehensive report on his own health this week. The billionaire real estate mogul is set talk about his health on "The Dr. Oz Show," being taped Wednesday and set for air on Thursday.
Clinton plans to return to the campaign trial on Thursday, with appearances that include a rally in Greensboro, North Carolina, a key battleground state.
"We'll be back at it tomorrow," Mook told CNBC.
Asked whether Clinton's pneumonia was viral or bacterial, Mook said: "I'm not a doctor, so I can't tell you. Her doctor is working on compiling information that we will be releasing very, very shortly."
Most healthy people recover from pneumonia in one to three weeks, but for elderly or debilitated patients it may take longer, according to the American Lung Association.
The 68-year-old Clinton canceled West Coast events earlier this week.
In a phone interview with CNN on Monday, the Democratic presidential nominee said she didn't disclose her pneumonia diagnosis sooner because she "didn't think it was going to be that big a deal."
Clinton has been resting at her home in Chappaqua, New York.