"Special election musical chairs" is a term used by editorialists to describe a series of special elections triggered by the mid-term resignation or death of an officeholder, with elections being won by other officeholders, triggering further special elections until either the next election required to replace a vacant office is scheduled on a regular election day or the winner of an election does not create a vacancy in any elected office.
A well-known example is the series of five special elections held in the Oakland-Berkeley area from April 1998 to April 1999. It began with the mid-term retirement of well-known Congressman Ron Dellums, and ended one year later with the unexpected election to the California State Assembly of Green Party candidate Audie Bock - by which time turnout had fallen to just 15% of registered voters.
On November 17, 1997, 27-year veteran Congressman Ron Dellums announced that he was retiring from Congress. Having represented the Oakland-Berkeley area since 1970 and first elected as anti-Vietnam War activist, the 61-year-old Dellums said: "Now I choose to make a personal decision and to empower myself to regain my life. It's important for me to now move on." However, rather than serve the rest of his 2-year term (which was set to expire in January 1999), Dellums announced that he would step down effective February 1998. Therefore, a special election would have to be called, and was scheduled for April 7, 1998.
Upon stepping down, Dellums endorsed a long-time aide, Barbara Lee, who at the time was representing the Berkeley-Oakland area in the California State Senate. With strong support from a popular incumbent, Barbara Lee faced little opposition in the April 7th special election. She was elected to Congress with 67% of the vote, defeating fellow Democrats Greg Harper and Randall Stewart, and Republican Charlie Sanders. Voter turnout was 16%.
As Lee took office immediately, she had to give up her State Senate seat, triggering a special election, called for September 1, 1998.