"When vacancies happen in the Representation from any State, the Executive Authority thereof shall issue Writs of Election to fill such Vacancies."
Comment: The Framers did not want to see "the people" go unrepresented. As a result, this clause provides the power to fill a vacant House seat by a special election. The Constitution vests that power with the State Executive - i.e., the State's Governor. The Governor has substantial discretion as to the timing of special elections; but, as a general rule, has affirmative duty to issue writs of election to fill vacancies unless the unexpired term were exceedingly short.
Primary Source. The Heritage Guide to the Constitution.
Primary Source. The Heritage Guide to the Constitution.