  A search for electroweak production of supersymmetric (SUSY) particles in
final states with one lepton, a Higgs boson decaying to a pair of bottom
quarks, and large missing transverse momentum is presented. The search uses
data from proton-proton collisions at a center-of-mass energy of 13 TeV
collected using the CMS detector at the LHC, corresponding to an integrated
luminosity of 137 fb$^{-1}$. The observed yields are consistent with
backgrounds expected from the standard model. The results are interpreted in
the context of a simplified SUSY model of chargino-neutralino production, with
the chargino decaying to a W boson and the lightest SUSY particle (LSP) and the
neutralino decaying to a Higgs boson and the LSP. Charginos and neutralinos
with masses up to 820 GeV are excluded at 95% confidence level when the LSP
mass is small, and LSPs with mass up to 350 GeV are excluded when the masses of
the chargino and neutralino are approximately 700 GeV.
