Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_41675 ( "Poll Source" text, "Date(s) administered" text, "Sample size" real, "Margin of Error" text, "Mel Martinez (R)" text, "Betty Castor (D)" text )

### Question ###
What is the percentage for Mel Martinez when the sample size is 800?

### Accurate SQL ###

SELECT "Mel Martinez (R)" FROM table_41675 WHERE "Sample size" = '800'