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_name_49 ( poll_source VARCHAR, nathan_deal VARCHAR, john_oxendine VARCHAR )

### Question ###
In what poll is Nathan Deal at 13% and John Oxendine at 28%?

### Accurate SQL ###

SELECT poll_source FROM table_name_49 WHERE nathan_deal = "13%" AND john_oxendine = "28%"