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_25691838_12 (episode__number INTEGER, guest VARCHAR)
### Question:
What is the  episode # when the guests were julie nixon eisenhower and david eisenhower?
### Answer:
SELECT MIN(episode__number) FROM table_25691838_12 WHERE guest = "Julie Nixon Eisenhower and David Eisenhower"