An empowering picture book by Senator Elizabeth Warren, following a young girl who's tired of hearing what girls can't do. Polly knows she's strong and capable. But whenever she offers to help her uncle or brother or neighbor, they tell her: "That's not what girls do." Then one day, Polly goes to a rally to meet a woman who's running for president, and they make a pinkie promise to remember all the things that girls do. Polly carries that promise with her at school, onto the soccer field, and even into an election for Class President! This inspiring story will encourage young readers to dream big.