Contreras served as head of the Puerto Vallarta DIF during the municipal presidency of her husband.

He served as Ecuador's foreign relations vice minister during the presidency of Sixto Durán Ballén (1992-1996).

He also served as a deputy assistant secretary of state during the presidency of Ronald Reagan.

He served an Army general during the presidency of Charles G. Taylor.

However, the palace again served as the principal residence of the President during the presidency of Mauno Koivisto, until the new residence, Mäntyniemi, was completed.

She served as personal counsel and an informal adviser to Hillary Clinton during the presidency of Bill Clinton.

He also served as Minister of Information in 1993 during the presidency of Ranasinghe Premadasa.

He also served as a Senator of the Republic during the presidency of Sténio Vincent.

He also served as the chief of staff to the office of the President of Germany during the presidency of Richard von Weizsäcker from 1989 to 1994.

She previously served as communications chief during the presidency of George W. Bush and in his 2004 re-election campaign.