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_16751596_6 (republican VARCHAR, poll_source VARCHAR)

### Question ###
How many times did Public Policy Polling under Republican: Jack Hoogendyk?

### Accurate SQL ###

SELECT COUNT(republican) AS :_jack_hoogendyk FROM table_16751596_6 WHERE poll_source = "Public Policy Polling"