Taylor Swift is rallying her army of super-fans to turn out in support of Kamala Harris. RadarOnline.com can reveal the pop star, 34, made waves as she took to social media to endorse Harris after the vice president’s first-ever debate against former president Donald Trump devolved into a heated war of words. Immediately after the ABC News event, Swift penned a lengthy Instagram post, writing: “Like many of you, I watched the debate tonight. If you haven’t already, now is a great time to do your research on the issues at hand and the stances these candidates take on the topics that matter to y…