<p>I don’t see anything wrong with having more than one passion. 
That’s why double majors exist, for people like you who want to follow more than one strict path (not that you HAVE to double, but it’s a possibility).</p>
<p>Just be genuine. If it’s something that you love, make it clear that you love it, and WHY you love it. From your activities, it seems clear that you enjoy politics and mathematics. Colleges don’t just want people who only see one way and one way only; they want people who are well rounded and have an open mind. </p>
<p>Not to mention, I think it’s a really interesting combination of interests you’ve got there…</p>