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_65503 ( "President" text, "Schl. 1948" text, "Schl. 1962" text, "M-B 1982" text, "CT 1982" text, "Siena 1982" text, "Siena 1990" text, "Siena 1994" text, "R-McI 1996" text, "Schl. 1996" text, "C-SPAN 1999" text, "WSJ 2000" text, "Siena 2002" text, "WSJ 2005" text, "Times 2008**" text, "C-SPAN 2009" text, "Siena 2010" text, "USPC 2011" text, "Aggr." text )

### Question ###
Who is the president when c-span 2009 is 21?

### Accurate SQL ###

SELECT "President" FROM table_65503 WHERE "C-SPAN 2009" = '21'