IA - Sanders or Biden (Do people really expect Klobuchar to be relevant enough to win Iowa?)
NH- Warren or Sanders (should be obvious unless both run and I'm not sure why people still think neither would run)
NV - Harris (depends on Reid machine though)
SC - Booker or Harris (could see loser dropping out
Klobuchar is the kind of candidate that probably wins Iowa and Iowa only.
Also, I can't see Reid actually backing Harris. She might get endorsements from a Democratic Governor should one be elected in 2018, Cortez Masto or Rosen (should she win her Senate race), but I think Reid realizes his time has more or less passed. He'll leave everyone to their own devices this time.
In South Carolina, Booker has the advantage, unless Harris wins Nevada and one of Iowa and New Hampshire.
It sounds like, by your analysis, that Klobuchar could end up being a female Tom Harkin from back in 1992.
