Below is a list of special elections to the United States House of Representatives.
Such elections are called by state governors to fill vacancies that occur when a member of the House of Representatives dies or resigns before the biennial general election.
In the United States, these contests are called "special elections."
[1] Special elections to the U.S. House have occurred at least once in all states except Idaho.
Furthermore, we find that the effect of presidential approval on special election outcomes has increased in magnitude from 1995 to 2014, with the 2002 midterm representing an important juncture in the nationalization of special elections.