Johnson and co-workers found that using a hybrid functional with an increasing fraction of exact exchange reduced delocalization error. Herbert and co-workers found similar behavior, with the SOMO energy of e - (aq) from MQC snapshots increasing with fraction of exact exchange from PBE to PBE0 to HF. To test whether increasing the amount of exact exchange reduces delocalization errors and overbinding in our benchmark electronwater system, we plot interaction energies for the halfand-half hybrid, BH&HLYP, as solid black curves in Fig. . We see much improved agreement to MP2 with this functional, with errors in the interaction energy not exceeding 0.06 eV, although a small amount of delocalization error remains, as seen in the solid black curves of Fig. , and noted also by Johnson and co-workers. BLYP BH&HLYP MP2