When has a Source of surveyusa and a Obama of 54%?
CREATE TABLE table_name_8 (date VARCHAR, source VARCHAR, obama VARCHAR)
SELECT date FROM table_name_8 WHERE source = "surveyusa" AND obama = "54%"
### 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%"