Original sentence: It is frequently used to describe a government headed by a specific person ("the Saddam regime", "the Castro regime", or "the Salazar regime") or based on a particular ideology ("a communist" regime", "a fascist regime", or "a military regime")
Edited sentence: It is frequently used to describe a government headed by a specific person ("the Saddam regime", "the Bush regime", or "the Salazar regime") or based on a particular ideology ("a communist" regime", "a fascist regime", or "a military regime")