Richard B. Cheney, who served as the 46th vice president of the United States and whose decadeslong career in Washington included a lengthy stint as Wyoming’s sole congressman, died Monday night.

His death was caused by complications of pneumonia and cardiac and vascular disease, his family said in a statement. He was 84 years old.

Cheney’s Washington career began in 1968 with a one-year stint as a congressional fellow and included service on then-President Richard Nixon’s Cost of Living Council, at the Office of Economic Opportunity and within the White House.

He served on the transition team when Gerald Ford assumed the presidency in 1974 and eventually rose to become Ford’s White House chief of staff.

After briefly returning to Wyoming, Cheney then ran for the state’s sole congressi

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