Political science really science or not?

Yes, it is because you are studying the reaction of people to their government or ethics. This is, in theory, no different then studying the reaction that happens when you mix baking soda and vinegar It is only a science to those that believe it to be yield testable, repeatable, accurate results through analysis that doesn't come from economics, psychology, or political bias...which it doesn't. It should be called governmentology or something along those lines, not a science. You won't find a political "scientist" at the World Science Convention. Also, mixing baking soda and vinegar using the exact same portions over and over again and looking at repeated results is a science. Guessing who's going to vote one way or react to a different situation is psychology at best, not repeatable scientific testing.