Well Turdblossom - here's the deal: Indies don't vote very well in the mid-terms. Half the rate of Republicans, especially in the Red states. Those that do tend to be informed and fairly partisan as very few true indies tend to vote in those elections.
If I were a campaign manager this time around, I'd woo the Indies I could, try to keep the loss to no more than 55-45, and go right after the same blue dog dems Trump did. Pump up the GOP turnout, and try to demoralize the Bernie Dems from coming out.