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_1341663_6 (party VARCHAR, district VARCHAR)

### Question ###
What party was the winning one in the elections in the California 30 district?

### Accurate SQL ###

SELECT party FROM table_1341663_6 WHERE district = "California 30"