Question: Prior to reestablishing the Deputy Chair of the Democratic National Committee in  February 2017, Tom Perez served in what position from 2009 to 2013? 
Sentence (from "Tom Perez"): Thomas Edward Perez (born October 7, 1961) is an American Democratic Party politician and attorney who has served as the Chairman of the Democratic National Committee since February 2017.
Relevant evidence: No