 There have also been attempts to use plural logic to eliminate apparent reference to groups. Instead of referring to the Supreme Court, say, perhaps we might get by with referring plurally to its members. An obvious challenge for this approach is that a group can have different members at different moments of time and possible worlds, while the plurality of its (current and actual) members appears to be rigid, temporally as well as modally  (Section 2.3).  See (Horden and López de Sa 2021) for a defense of the proposed elimination against such challenges. 