Chester, Pennsylvania —At a recent Harris-Walz campaign rally in Chester, environmental advocate Zulene Mayfield called for action from the crowd of a few hundred residents. “We are the masters of our fate,” she said, urging them “to mobilize this community in a way that has never happened.” Chester is what climate activists call an “environmental justice community,” a place where …

FALCON HEIGHTS, Minn. —Gov. Tim Walz made a short stop at the Minnesota State Fair on Sunday, his first as the Democratic nominee for vice president. The visit stands in stark contrast to what he’s used to at the “Great Minnesota Get Together” — available to move more freely and make multiple trips over the course of the 12-day event. …

NASA has bumped two female astronauts, including the commander, from the next SpaceX crew rotation flight to the International Space Station, freeing up two seats to give the agency’s Starliner astronauts a ride home next February. Rookie Crew 9 commander Zena Cardman and veteran Stephanie Wilson will remain behind when the Crew Dragon ferry ship takes off from pad 40 …