CREATE TABLE "polling" (
  "poll_source" text,
  "date_administered" text,
  "democrat" text,
  "republican" text,
  "lead_margin" real
);

Question: Which Lead Margin has a Poll Source of rasmussen reports/ fox news?
SQL: SELECT MIN("lead_margin") FROM "polling" WHERE "poll_source"='rasmussen reports/ fox news';

Question: Which Poll Source has a Date administered of october 30 – november 2, 2008?
SQL: SELECT "poll_source" FROM "polling" WHERE "date_administered"='october 30 – november 2, 2008';