Since we already know that many words, terms, etc. that are in Q drops have two, if not more meanings. I am thinking that the term "Placeholder" could also be considered for newly elected Demonrats who we already know had to have resorted to fuckery in the vote count to be elected (Sinema in AZ for one, comes to mind.).
The obvious reason has already been mentioned by some anons, let them think they won, and then reveal the election fraud, forcing them to leave office. Special elections are held, and the honest winner becomes duly elected. So, the corrupt among the newly elected are merely Placeholders, until this all happens! Comments or thoughts welcomed (not like anons are shy about their opinions!).