Lieberman really needs to drop out. He's been below Warnock in numerous polls now.
I agree Warnock will be ahead on Election Day, but looking at the polls from June:
MRG (D): Warnock +10
PPP (D): Warnock +9
Gravis (OANN/R): Warnock +7
Battleground Connect (R): Lieberman+5
Spry Strategies (R): Warnock doesn’t register (this would presumably mean he got less than 5%, but perhaps they just omitted him)
Monmouth: Lieberman +5
HIT Strategies (D): tie
This one: Warnock +4
To make this argument, Warnock probably needs a run showing him clearly ahead. He hasn’t even managed a six-poll streak yet (including the last from May, he’s managed a maximum of four in a row).