Switching Majors/Schools?

<p>I was just admitted, and a question arose in my head. I was originally going to apply under the major of Political Communication in the School Of Media and Public Affairs, however, during my interview my interviewer showed me that the SOMP accepts roughly 90 students a year and it would be better to apply undecided and switch in. I disagree with applying undecided so I applied under the Elliot School. If I eventually decide that Political Communication IS what I really want to do, how hard would it be to be accepted into that major? Anyone?</p>