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We present an improvement of the MC event generator Herwiri2, where we recallthe latter MC was a prototype for the inclusion of CEEX resummed EW correctionsin hadron-hadron scattering at high cms energies. In this improvement the newexact ${\cal O}(\alpha^2L)$ resummed EW generator ${\cal{KK}}$ MC 4.22,featuring as it does the CEEX realization of resummation in the EW sector, isput in union with the Herwig parton shower environment. The {\rm LHE} format ofthe attendant output event file means that all other conventional parton showerenvironments are available to the would-be user of the resulting new MC. Forthis reason (and others -- see the text) we henceforth refer to the newimprovement of the Herwiri2 MC as ${\cal{KK}}\text{MC-hh}$. Since this new MCfeatures exact ${\cal O}(\alpha)$ pure weak corrections from the DIZET EWlibrary and features the CEEX and the EEX YFS-style resummation of largemultiple photon effects, it provides already the concrete path to 0.05\%precision on such effects if we focus on the EW effects themselves. Wetherefore show predictions for observable distributions and comparisons withother approaches in the literature. This MC represents an important step in therealization of the exact amplitude-based $QED\otimes QCD$ resummation paradigm.Independently of this latter observation, the MC rigorously quantifiesimportant EW effects in the current LHC experiments.

${\cal{KK}}\text{MC-hh}$: Resummed Exact ${\cal O}(\alpha^2L)$ EW Corrections in a Hadronic MC Event Generator