A second seat was scheduled for election due to the impending mandatory retirement of Judge Emeritus John T. Bender on December 31, 2023.

[20] However, the makeup was decreased to a 8–6 Democratic majority when Judge Dan McCaffery vacated his seat after being elected to the Pennsylvania Supreme Court.

[28][3] A special election took place after the resignation of City Controller Rebecca Rhynhart in October 2022 to run for mayor.

Libertarians had nominated business consultant and constable Thomas Anderson, but he failed to file the necessary paperwork in time and his lawsuit for ballot access was denied by the Commonwealth Court of Pennsylvania.

The vacancies have made the difference between Democratic and Republican control, and paralyzed the chamber due to representatives' inability to agree on basic operating rules.

[69][70] 2022 Green Party candidate Queonia Livingston had filed nomination papers but they were rejected by the Pennsylvania Department of State.

[71] Summer Lee Democratic Abigail Salisbury Democratic On On November 8, 2022, incumbent representative Summer Lee was elected to the U.S. House of Representatives in Pennsylvania's 12th congressional district, while simultaneously running unopposed for reelection to the 34th legislative district.

Davis was subsequently reelected to represent the 35th district, defeating Republican challenger Donald Nevills with 65% of the vote.

[69][70] Organizations Planned Parenthood PA PAC[79] Lynda Schlegel-Culver Republican Mike Stender Republican On January 31, 2023, incumbent representative Lynda Schlegel-Culver was elected to Pennsylvania's 27th Senatorial district in a special election amid the resignation of Senator John Gordner.

[87] Democrats nominated Heather Boyd, a senior staffer to Congresswoman Mary Gay Scanlon and former Upper Darby School Board member.