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About Mark Singel
- Mark Stephen Singel (born September 12, 1953) is an American politician who served as the 27th lieutenant governor of Pennsylvania from 1987 to 1995, alongside Governor Bob Casey.
- Singel served as the state's acting governor from June 14, 1993 to December 13, 1993, during Casey's lengthy battle with amyloidosis and subsequent multiple organ transplant.
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