| 1 | A | B | C | D | E |
| --- | --- | --- | --- | --- | --- |
| 2 | 100th United States Congress - Senate |  |  |  |  |
| 3 | State (class) | Vacator | Reason for change | Successor | Date of successor's formal installation |
| 4 | Nebraska (1) | Edward Zorinsky (D) | Died March 6, 1987. Successor was appointed to finish the term. | David Karnes (R) | March 11, 1987 |
| 5 | Nebraska (1) | David Karnes (R) | Lost election and resigned November 8, 1988. | Vacant to the end of this Congress. | Vacant to the end of this Congress. |

Question: How long did Edward Zorinsky serve in the senate before Karnes took over?
Answer: Edward Zorinsky (D) served in the Senate until March 6, 1987, a seat which was later served by David Karnes (R) from March 11, 1987 until November 8, 1988.