2020 GA US Senate Special Election- How come Tarver-D is not being publicly asked to drop out?

[nkpolitics1212]

GA and National Democrats are asking Matt Lieberman but not Ed Tarver to drop out of the US Senate Race and endorse Raphael Warnock-D in the open primary and the general election runoff.

Ed Tarver should be asked drop out because he is polling at 5 percent and all of his supporters will go to Warnock.
Matt Lieberman should drop out and endorse Warnock if he wants to convince GA and National Democratic voters that he is nothing like his father or Zell Miller.