predecessor president office birth_date term_start image article_title name alma_mater
arturo valenzuela barack obama assistant secretary of state for western hemisphere affairs 1960 july 2011 -- march 30 , 2012 31 , 2011 acting : july 31 , roberta s jacobson.jpg roberta s. jacobson
 roberta jacobson brown university tufts university
roberta s. jacobson

roberta s. jacobson -lrb- born 1960 -rrb- has been the united states assistant secretary of state for western hemisphere affairs since march 30 , 2012 .
