"Gerst gets good mileage out of her political roots, but it's her finely honed plot that seals the deal. Here's hoping she runs for another term."-Kirkus Reviews STARRED review Politics, money, love . . . what could go wrong? Susan Callisto is pushing thirty and taking stock. Trading financial security at a Boston law firm for sandals and jeans in Waltham, she's reinvented herself as a political consultant for people seeking low-level office. Her...