Tim Johnson

Timothy Peter Johnson (born December 28 1946) is the senior United States Senator from South Dakota, and a member of the Democratic Party. He was the subject of national attention in December 2006 when his ill health raised the possibility that, were he to die, the South Dakota governor might appoint a Republican to fill his seat, thus returning the Senate to Republican control after elections which had given the Democratic Party a slim majority.

Sourced

 * Of course, I believe I have an unfair edge over most of my colleagues right now. My mind works faster than my mouth does. Washington would probably be a better place if more people took a moment to think before they spoke.
 * First public appearance after experiencing a brain hemorrhage, 28 August 2007