CREATE TABLE table_9479 ("Poll Source" TEXT, "Sample Size" FLOAT, "Margin of Error" FLOAT, "Date" TEXT, "Democrat" TEXT, "Republican" TEXT)

What was the sample size for the poll from Nov 9-11, 2007 with a margin of error less than 4.3?
SELECT MAX("Sample Size") FROM table_9479 WHERE "Date" = 'nov 9-11, 2007' AND "Margin of Error" < '4.3'
SELECT MAX("Sample Size") FROM "table_9479" WHERE "Date" = 'nov 9-11, 2007' AND "Margin of Error" < '4.3'