(FILES) This file photo taken on December 11, 1985 shows US President Ronald Reagan addressing a group of tax reform supporters in Washington DC. Ronald Reagan endured questions about his age and mental state and John McCain was pressured into releasing 1,000 pages of medical records. Democratic nominee Hillary Clinton, recently diagnosed with pneumonia, is hardly the first presidential candidate facing health concerns. / AFP PHOTO / MIKE SARGENT / TO GO WITH AFP STORY by Michael Mathes, "Clinton far from first candidate to suffer health scare"MIKE SARGENT/AFP/Getty Images

WASHINGTON, DC - SEPTEMBER 12: The Trump International Hotel on its first day of business September 12, 2016 in Washington, DC. The Trump Organization was granted a 60-year lease to the historic Old Post Office by the federal government before Trump announced his intent to run for president. The hotel has 263 luxry rooms, including the 6,300-square-foot 'Trump Townhouse' at $100,000 a night, with a five-night minimum. (Photo by Chip Somodevilla/Getty Images)

WASHINGTON, DC - SEPTEMBER 12: Last-minute preparations are made in front of the Trump International Hotel on the first morning it is open for business September 12, 2016 in Washington, DC. The Trump Organization was granted a 60-year lease to the historic Old Post Office by the federal government before Trump announced his intent to run for president. The hotel has 263 luxry rooms, including the 6,300-square-foot 'Trump Townhouse' at $100,000 a night, with a five-night minimum. (Photo by Chip Somodevilla/Getty Images)

WASHINGTON, DC - SEPTEMBER 12: A truck with a digital billboard parks in front of the newly opened Trump International Hotel during a protest against Republican presidential candidate Donald Trump and what demonstrators say are his racist and anti-immigration positions September 12, 2016 in Washington, DC. The Trump Organization was granted a 60-year lease to the historic Old Post Office by the federal government before Trump announced his intent to run for president. The hotel has 263 luxry rooms, including the 6,300-square-foot 'Trump Townhouse' at $100,000 a night, with a five-night minimum. (Photo by Chip Somodevilla/Getty Images)

WASHINGTON, DC - SEPTEMBER 12: Employees make last-minute preparations in front of the Trump International Hotel on the first morning it is open for business September 12, 2016 in Washington, DC. The Trump Organization was granted a 60-year lease to the historic Old Post Office by the federal government before Trump announced his intent to run for president. The hotel has 263 luxry rooms, including the 6,300-square-foot 'Trump Townhouse' at $100,000 a night, with a five-night minimum. (Photo by Chip Somodevilla/Getty Images)

WASHINGTON, DC - SEPTEMBER 12: Stacks of protest signs are piled in front of the newly opened Trump International Hotel during a demonstration against Republican presidential candidate Donald Trump and what demonstrators say are his racist and anti-immigration positions September 12, 2016 in Washington, DC. The Trump Organization was granted a 60-year lease to the historic Old Post Office by the federal government before Trump announced his intent to run for president. The hotel has 263 luxry rooms, including the 6,300-square-foot 'Trump Townhouse' at $100,000 a night, with a five-night minimum. (Photo by Chip Somodevilla/Getty Images)

WASHINGTON, DC - SEPTEMBER 12: (EDITORS NOTE: Image Contains Profanity) Demonstrators gather in front of the newly opened Trump International Hotel to protest against Republican presidential candidate Donald Trump and what they say are his racist, sexist and anti-immigration positions September 12, 2016 in Washington, DC. The Trump Organization was granted a 60-year lease to the historic Old Post Office by the federal government before Trump announced his intent to run for president. The hotel has 263 luxry rooms, including the 6,300-square-foot 'Trump Townhouse' at $100,000 a night, with a five-night minimum. (Photo by Chip Somodevilla/Getty Images)

WASHINGTON, DC - SEPTEMBER 12: Last-minute preparations are made in front of the Trump International Hotel on the first morning it is open for business September 12, 2016 in Washington, DC. The Trump Organization was granted a 60-year lease to the historic Old Post Office by the federal government before Trump announced his intent to run for president. The hotel has 263 luxry rooms, including the 6,300-square-foot 'Trump Townhouse' at $100,000 a night, with a five-night minimum. (Photo by Chip Somodevilla/Getty Images)