Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_45 (term_start VARCHAR, political_party VARCHAR)
### Question:
What is the Term Start date of the Progressive Party Prime Minister?
### Answer:
SELECT term_start FROM table_name_45 WHERE political_party = "progressive party"