You must show them:
Edith Bolling Galt Wilson was second wife of the 28th President, Woodrow Wilson. She served as First Lady from 1915 to 1921. After the President suffered a severe stroke, she pre-screened all matters of state, functionally running the Executive branch of government for the remainder of Wilson’s second term.
“Secret President,” “first woman to run the government” — so legend has labeled a First Lady whose role gained unusual significance when her husband suffered prolonged and disabling illness.
https://www.whitehouse.gov/about-the-white-house/first-families/edith-bolling-galt-wilson/
Woodrow Wilson - Strokes and denial
In 1919, President Woodrow Wilson suffered a severe stroke that left him incapacitated until the end of his presidency in 1921, an event that became one of the great crises in presidential succession. However, historian Edwin A. Weinstein notes that Wilson had a history of cerebrovascular disorders going back to 1896, sixteen years before his was elected president.
When Dr. Grayson briefed the Cabinet, the question of succession came up but he refused to sign any official notice of disability. He also discouraged letting the public know the extent of the president's condition (Weinstein suggests this reflected Edith Wilson's opinion).