But White House press secretary Sarah Huckabee Sanders said Thursday that Trump simply was suffering from a dry throat.
In addition to the recording of his lewd conversation with Access Hollywood host Billy Bush that leaked just weeks before the 2016 election, Trump was accused of sexual assault or harassment by more than a dozen women during the course of his presidential campaign. But she testified to Trump's endurance.
Sanders also said that Trump would undergo a checkup - "the full physical that presidents go through" - at Walter Reed in "the first part of next year". Trump's physical will take place at the Walter Reed National Military Medical Center in Bethesda, Md.
The grassroots group CREDO had garnered more than 152,000 supporters as of Thursday afternoon in its call for a federal investigation into allegations of government officials' abuses, starting with Trump's.
"If elected, Mr. Trump, I can state unequivocally, will be the healthiest individual ever elected to the presidency", Dr. Harold Bornstein, who had been Trump's primary physician since 1980, wrote in the December 2015 letter, which offered few specifics.
Trump has frequently touted his oral health in the past.
"We have a president of the United States who acknowledged on a tape widely seen all over the country that he's assaulted women, so I would hope maybe the president of the United States might pay attention of what's going on and also think about resigning", Sanders told Gayle King on CBS This Morning. "A lot of times these rooms are very hot, like saunas, and I guess that is a form of exercise and, you know?"
Barack Obama's 2014 physician's report noted, declared him "tobacco-free", but said that he does make "occasional use" of "nicotine gum".