CREATE TABLE table_name_84 (other VARCHAR2, joe_sestak__d_ VARCHAR2, margin_of_error VARCHAR2, pat_toomey__r_ VARCHAR2)

WHAT CANDIDATE HAD A MARGIN OF ERROR OF 4.5%, WHEN PAT TOOMEY WAS 45% AND JOE SESTAK WAS 38%?
SELECT other FROM table_name_84 WHERE margin_of_error = "± 4.5%" AND pat_toomey__r_ = "45%" AND joe_sestak__d_ = "38%"
SELECT "other" FROM "table_name_84" WHERE "38%" = "joe_sestak__d_" AND "45%" = "pat_toomey__r_" AND "margin_of_error" = "± 4.5%"