Or, none of those seats in Appalachia or in the WCW Midwest are particularly competitive at all, while in suburban California, New York, Florida, Texas, Georgia, and Virginia there are vulnerable Republicans in Clinton districts who can be defeated.
Smart move.
You target the seats that are competitive. It's a waste of time to target seats that are never going to flip.
Tactically, it's a smart move. Strategically, it's a troubling sign to those of us who want a party of the left.
The House is different. There's no penalty for winning a big state unanimously in the House, and for better or worse, all of the Midwestern swing states have been neatly sliced into 2 or 3 unanimous D districts with everything else being Lean R before Trump and Likely R now. The only House seat pickup opportunities in the Midwest are in parts of metro Chicago that will respond better to the Orange County strategy. Not to mention that just between the Clinton Republicans in California, Texas, and Florida, Democrats could be more than halfway to a majority.