A Corpse at the Polls - Ella Sweeting: Witch Aromatherapist Cozies, #3

Elections are murder. When Ella Sweeting, aromatherapist witch-in-training, stumbles over the body of Helen Christianson, the leading mayoral candidate, she knows Detective Garza will have her head for getting mixed up in yet another murder. But when Garza herself is attacked, there's no holding back. Finding herself at the helm of police department in turmoil, Ruby the cop turns to Ella for help in solving the murder.
But as the attacks increase, and Rory starts to get suspicious of Ella and her Aunt's magic, Ella finds herself in more trouble than she could ever imagine.