Over the past several months, and with his recent inflammatory comments on immigration, President Donald Trump has made the United States-Mexico border a point of contention in American political discourse. Yet while the nation focuses on the immigration battle at the Southern border, constituents in California are more concerned about pressing environmental issues that affect them every day. Over the past 30 years, the blue-collar beach town of Imperial Beach has battled a pollution crisis that poses a significant economic and public health threat to residents, visitors and communities on both sides of the California-Mexico border.