This is PPP projecting their preconception that McDaniel voters are what the left’s myth machine says they are, that is, the bogey-men that haunt the dreams of the SPLC. If they get the polling result that they want - and expect - to get they will blare from the mountaintops that McDaniel supporters want to reinstitute slavery.
They are already slaves of the Democrat Party. They are simply too ignorant to realize who their masters are.
Voluntary slavery is still slavery.