text: 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_8 (date VARCHAR, source VARCHAR, obama VARCHAR)
  ### Question:
  When has a Source of surveyusa and a Obama of 54%?
  ### Answer:
  SELECT date FROM table_name_8 WHERE source = "surveyusa" AND obama = "54%"