The phrase "prior administration" refers to the government or leadership that was in power before the current one. It implies the previous group of people who held important positions in running the country. Full definition
Delrahim was critical of the attempts of prior administrations to make «behavioral remedies» conditions to approve of big corporate mergers. (cnbc.com)
Though the letter does not explicitly say so, the Council members are referring to a PEG or Program to Eliminate the Gap, which was used by prior administrations to identify ways of reducing expenses, eliminating waste, and boosting revenue to close projected gaps in the budget. (gothamgazette.com)
And, unlike energy conversations in prior administrations, science and the environment are expected to be an important part of the agenda. (dirtyoilsands.org)