Who had most laps led at Chicagoland speedway? 
CREATE TABLE "2005_indy_car_series_schedule" (
  "rnd" real,
  "date" text,
  "race_name" text,
  "track" text,
  "location" text,
  "pole_position" text,
  "fastest_lap" text,
  "most_laps_led" text,
  "winner" text
);
SELECT "most_laps_led" FROM "2005_indy_car_series_schedule" WHERE "track"='Chicagoland Speedway';