The president was announcing a policy shift, stating the United States would move its embassy in Israel from Tel Aviv to Jerusalem, although as he was speaking, many noticed that he was slurring his speech.
It is the first time the White House has committed to releasing records about the president's health, something his predecessors did regularly.
When asked about Trump's apparent verbal slip, a White House spokesperson told Quartz on Wednesday that Trump had a case of "dry mouth", a response that Sanders echoed.
"Thank you, God bless you, God bless Israel, God bless the Palestinians, and God bless the United States , " Trump said.
But White House press secretary Sarah Huckabee Sanders said Thursday that Trump simply was suffering from a dry throat.More news: Amazon Prime Video App Launches on Apple TV
But that only fueled additional conversation about the subject. "So I think he's in pretty good health".
What's more, Sanders' pushback notwithstanding, there's nothing "ridiculous" about the questions.
Questions had arisen about whether Trump wears dentures. Indeed, Trump himself invested an enormous amount of time past year questioning Hillary Clinton's health, so it's not as if he can plausibly say this is an irrelevant issue that's somehow off-limits.
Sanders also said Trump will undergo the customary presidential physical in early 2018 at Walter Reed National Military Medical Center, adding, "Those records will be released by the doctor following that taking place".
At age 70 previous year, Trump was the oldest person ever to have been elected president.