Part memoir, part how-to and part progressive political handbook, Moving Forward takes the reader on a journey that begins in the Haitian-American enclave in Queens, New York, where I grew up. Most political origin stories have the same backbone: reading the Washington Post in elementary school; skipping school to see a presidential candidate; canvassing door to door before they can count to ten.   That story can be intimidating. It reinforces the feeling people so often have that politics is a closed system; that if you weren’t participating in debate club or Young Democrats or Model U.N. by the time you finished high school, you have no chance in politics.   That is not Karine Jean-Pierre’s story. Unlike many people in politics, she is a naturalized American citizen. She wasn’t drawn to politics until after college, when she realized she wanted to have impact, to have her voice heard in the public arena, and to speak for those who a