Carl Trumbull Hayden (October 2, 1877 – January 25, 1972) was an American politician. He the first United States Senator to serve seven terms. Hayden was also the President pro tempore of the United States Senate, serving from 1957 to 1969.
- "Carl T. Hayden is Dead at 94; Arizonan in Congress 56 years", New York Times, January 26, 1972, pp. 40.
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