Maybe the strategy is to discourage people from voting…..
“They are worried that a negative, race to the bottom with Trump could stifle turnout, arguing that it has become clear to them — especially over the last 48 hours — that Trump’s strategy is to run the race into “the sewer.”
The thought goes like this: Trump scorches Republicans, gets nastier with Clinton to the point that she has to respond, voters get turned off and decide that they’ve had enough with this election — so they don’t vote.”