If you are going off the rankings from US news then Ohio State (ranks 15) also has a "department specialization" in political psychology. Check more about it out here. I assume this is like a minor that Dwar mentioned for Minnesota. I am going for political behavior, public opinion, and political psychology in American Politics. Duke (7) also is unique in the fact that instead of the standard AP, CP, IR, Methods, and Theory fields they offer other fields. One of those is Political Behavior and Identities. This is one that I wanted to apply to, but they were not accepting applications this year because of financial concerns :(. (See all of those here.) Of course, there are even more institutions that offer behavior or psychology in political science. Though not in the top 15, Pittsburgh offers Political Behavior as a field alongside the normal AP, CP, IR, Methods, and Theory. Might would be a good safety school to apply to if you were interested. See more on them here.