Lessons in Power -By Jennifer Lynn Barnes

Knowledge is power, but secrets can kill . . .
For Tess Kendrick, a student at the elite Hardwicke School, making problems disappear runs in the family. But Tess has another legacy, too, one that involves power and the making of political dynasties. When Tess is asked to run a classmate's campaign for student council, she agrees. But when the candidates are the children of Washington D.C. elite, even a high school election can have life-shattering consequences.
What starts out as a friendly competition soon turns into a deadly struggle for control. Tess knows better than most that power is currency, but she's about to discover firsthand that power always comes with a price and no one can be trusted . . .
Previously published as The Long Game.