As a Political Science major, some of my friends of other majors have poked fun at the "soft" nature of social sciences, political science included. My one friend, Isaac, he is an engineering major. He deals with math and physics, chemistry and thermal dynamics, the like and more. All of my friends that poke fun at soft sciences do so in a playful manner; even so, it got me thinking...
After reading one book in one of my political science classes that compared social science to genetics, as well as other practices of the "hard" sciences, I began to think of social sciences as a probability science. Social sciences that study the whole in particular are, much like hard sciences, empirical and rational. The difference is that when you drop a ball, you will never expect it to go up unless forces other than gravity are acting upon it. For social sciences, we can assume the same thing about certain principles of society. There are some things in society (like birth rates) that tend to remain uncannily steady throughout decades, and other things can allow us to know the empirical probability of one scenario occurring.
The most important thing to remember is that, as a political science major, I might very well end up in office one day. There, I would be in charge of many administrative powers, including but not limited to, the facilitation and regulation of, about and in dealing with new innovations. Those innovations are the products of the hard sciences; regulations and implementation of those innovations is the product of social science. In a sense, any person who is in the position of administrative political authority is indirectly the supervisor of those people who are in the "hard sciences" field.