Hillary & Chelsea's Campaign Trail Scrapbook

In an unexpectedly tough race, the former secretary of state has her daughter and 'blissful' playdates with granddaughter Charlotte to keep her going strong

On the campaign trail, "every day, I wear a locket with my daughter's picture in it," Chelsea tells PEOPLE of her good luck charm, which features 17-month-old Charlotte. "Just for life luck. Though I certainly hope it transfers to my mom!"