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_11791 ( "Name" text, "Appointed/Elected" text, "Term expires" text, "Appointing Governor" text, "Governor's Party Affiliation" text )

### Question ###
What is the party affiliation of Thomas D. Waterman, whose appointing governor is Terry Branstad?

### Accurate SQL ###

SELECT "Governor's Party Affiliation" FROM table_11791 WHERE "Appointing Governor" = 'terry branstad' AND "Name" = 'thomas d. waterman'