It is happening at the state level too. In Wisconsin, the gerrymandered (google it for background on Wisconsin) legislature has chosen to not conduct hearings on governor appointees, with the result that holdovers from prior administrations can remain in office indefinitely.
""(T)he expiration of Prehn's term on the DNR Board does not create a vacancy. Prehn lawfully retains his position on the DNR Board as a holdover," wrote Chief Justice Annette Ziegler for the majority. "Therefore, the Governor cannot make a provisional appointment to replace Prehn." [1]
[1] https://en.wikipedia.org/wiki/United_States_Environmental_Pr...