CREATE TABLE "by_county" (
  "county" text,
  "mc_cain_pct" text,
  "mc_cain_votes" real,
  "obama_pct" text,
  "obama_votes" real,
  "others_pct" text,
  "others_votes" real
);

Question: Name the mccain % for dukes
SQL: SELECT "mc_cain_pct" FROM "by_county" WHERE "county"='Dukes';

Question: Name the number of counties for obama votes for 49558
SQL: SELECT COUNT("county") FROM "by_county" WHERE "obama_votes"=49558;

Question: Name the number of others votes for when others % is 2.0%
SQL: SELECT COUNT("others_votes") FROM "by_county" WHERE "others_pct"='2.0%';