CREATE TABLE "opinion_polling_for_the_united_states_gu" (
  "poll_source" text,
  "dates_administered" text,
  "democrat_jay_nixon" text,
  "republican_kenny_hulshof" text,
  "lead_margin" text
);

Question: Who's the poll source that claimed the Lead Margin was 17 and the Democrat: Jay Nixon had 54% of the votes?
SQL: SELECT "poll_source" FROM "opinion_polling_for_the_united_states_gu" WHERE "democrat_jay_nixon"='54%' AND "lead_margin"='17';

Question: What poll source claimed that Republican: Kenny Hulshof had 43%?
SQL: SELECT "poll_source" FROM "opinion_polling_for_the_united_states_gu" WHERE "republican_kenny_hulshof"='43%';

Question: How many different lead margins were stated in the poll administered on September 11, 2008?
SQL: SELECT COUNT("lead_margin") FROM "opinion_polling_for_the_united_states_gu" WHERE "dates_administered"='September 11, 2008';

Question: What percentage was claimed that Republican: Kenny Hulshof got in the poll that also claimed Democrat: Jay Nixon got 48%?
SQL: SELECT "republican_kenny_hulshof" FROM "opinion_polling_for_the_united_states_gu" WHERE "democrat_jay_nixon"='48%';