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_37 ( first_elected INTEGER, party VARCHAR, district VARCHAR )

### Question ###
In what year was the republican incumbent from Kentucky 2 district first elected?

### Accurate SQL ###

SELECT SUM(first_elected) FROM table_name_37 WHERE party = "republican" AND district = "kentucky 2"