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_87 (dates_administered VARCHAR, lead_margin VARCHAR, poll_source VARCHAR)
### Question:
What was the date of the poll from Survey USA that showed a lead margin smaller than 5.5?
### Answer:
SELECT dates_administered FROM table_name_87 WHERE lead_margin < 5.5 AND poll_source = "survey usa"