When Sarah Palin wrote a cheat sheet for an interview on her hand last weekend, liberal commentators predictably bashed her — although the ex-Republican veep candidate did nothing that California’s top Democrat hadn’t done before. From Arianna Huffington to Andrea Mitchell, lefty pundits pounced on Palin, after photos showed that she’d scribbled brief talking points on her palm — “energy, cuts, tax, lift American spirits” — before sitting for questions during last weekend’s big, conservative Tea Party convention.Veteran California political scribes recalled, however, that now-senior Senator Dianne Feinstein pulled the same stunt during a crucial debate when she unsuccessfully ran for governor against Pete Wilson. Back...