Would Bernie have performed better had he actually competed in the South?

[The Mikado]

Remember, campaign time is a zero-sum game. Every moment you spend in one place takes away from others.

Could Bernie have done better in some places in the South? Yes, especially Tennessee and maybe Arkansas, Virginia, Texas, and Florida. Should he have campaigned more in those states? Remember, on Super Tuesday, Bernie lost Massachusetts and on March 15th Bernie lost Illinois and Missouri, and all three of those states were very winnable and, in the case of Massachusetts, was a highly symbolic and demoralizing loss (ditto the other two to the extent that it meant he was shut out on March 15th).