Don't know that he should put all his eggs in that basket. If that story turns out to be wrong, then my guess would be that the GOPe put it out because they were starting to sweat Chris's strategy of uncovering illegal double voting and fraudulent absentee ballots.
I'm still suspicious of this Reverend. Dem's tactics are to change focus to a breaking scandal then prove it was nothing. That would leave all the work the McDaniel campaign has already done by the side of the road.
Chris should keep doing what he's doing and let the other stuff break as it will.
Of course I am not advocating putting all his eggs in one basket. By all means, he should keep investigating illegal crossover votes and absentee ballots.