Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_50753 ( "Poll source" text, "Date(s) administered" text, "Sample size" real, "Margin of error" text, "Joe Sestak (D)" text, "Pat Toomey (R)" text, "Other" text, "Undecided" text )

### Question ###
WHAT CANDIDATE HAD A MARGIN OF ERROR OF 4.5%, WHEN PAT TOOMEY WAS 45% AND JOE SESTAK WAS 38%?

### Accurate SQL ###

SELECT "Other" FROM table_50753 WHERE "Margin of error" = '± 4.5%' AND "Pat Toomey (R)" = '45%' AND "Joe Sestak (D)" = '38%'