Longtime U.S. Senator Dianne Feinstein (D‑CA) recently returned to Capitol Hill after more than two months of time hospitalized and then recovering at home following an apparently serious bout of shingles that took her away from Senate business.

Setting aside other issues with Feinstein, there’s one big problem: Feinstein doesn’t seem to know she was away from Washington or missed any votes in committee or on the Senate floor. According to Slate writer Jim Newell and Los Angeles Times staff writer Benjamin Oreskes, the two …