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For what it’s worth, in the latest US News ranking of graduate political science programs, Penn is ranked #28 in the country, compared to Brown’s ranking at #46 (and Dartmouth’s program isn’t even ranked, as it has no graduate program):</p>
<p>[Rankings</a> - Political Science - Graduate Schools - Education - US News and World Report](<a href=“http://grad-schools.usnews.rankingsandreviews.com/best-graduate-schools/top-political-science-schools/rankings/page+2]Rankings”>http://grad-schools.usnews.rankingsandreviews.com/best-graduate-schools/top-political-science-schools/rankings/page+2)</p>
<p>On your list, only HYP have top-ranked political science programs.</p>