The White House said the president was not at his New York office for a conference call.
Aides said the President and first lady Melania Trump were “sick and tired” of being treated like fools.
“We are sick and tired of being told the truth, that this is a distraction from real issues that must be dealt with, that is why we are working every day to deliver the results we need,” the statement said.
The statement did not mention Trump’s health.
He and his team have said they were “not prepared to speculate” about what caused the problem, including the timing of his illness and whether the president’s brain injury had a role in it.
The White and Republican majorities in both houses of Congress have called for a probe into the Trump-Russia controversy.
But the Justice Department said in court filings last month that it has no evidence that Trump is the subject of a criminal investigation.
A spokeswoman for the Senate Intelligence Committee said Wednesday the panel will hold a hearing on the Russia investigation next week.
The committee’s ranking Democrat, Dianne Feinstein, has said she is working to subpoena documents related to the FBI’s investigation into Russian meddling in the 2016 election.
The president’s attorney general, Jeff Sessions, has been accused of misleading the Senate Judiciary Committee on whether he had any contact with the Russian ambassador during the 2016 campaign.
The Washington Post reported Wednesday that the FBI is investigating whether there is evidence Trump obstructed justice by firing FBI Director James Comey.