Question: Name the average Lead Margin on  November 13-November 19, 2007?
SQL: SELECT AVG("Lead Margin") FROM "2-16751596-17" WHERE "Dates administered" = 'November 13-November 19, 2007';

Question: Which Poll Source has a Republican Jim Risch of 43%?
SQL: SELECT "Poll Source" FROM "2-16751596-17" WHERE "Republican: Jim Risch" = '43%';