Politicians use public speeches to mobilize support by appealing to the emotions and values of their audience. They employ rhetorical strategies such as storytelling, repetition, and emotional appeals to resonate with citizens, fostering a sense of community and shared goals. Additionally, politicians may address popular concerns, promising solutions to issues like economy or social justice, thus rallying supporters. By effectively communicating their vision and mobilizing an emotional response, politicians can create a powerful movement that drives people to engage in campaigns, volunteer, and vote, enhancing their overall influence and support.