As Kamala Harris ramps up her campaign efforts, she faces the pressing need to connect with working-class voters. Labor unions, a critical ally, are scrambling to mobilize support ahead of key events, including endorsements from the largest Teamsters union in Texas shortly before a rally in Houston. While there is a significant groundswell of support among union members, there remain divisions within some groups, such as in Wisconsin, where unions have overwhelmingly endorsed her. Analysts suggest that to strengthen her appeal, Harris should emphasize her commitment to working-class needs rather than focusing on political adversaries like Trump. As union support swells and members rally behind her message, the battle for the hearts of blue-collar voters could prove pivotal for her political future.