SPRINGFIELD — Speaking to a room of more than 2,000 Illinois Democrats in the state’s capital city, U.S. House Speaker Nancy Pelosi pointed out the successes of the Democratically-charged state legislature and pushed for more party unity.Pelosi’s appearance kicked off what’s formally billed as “Governor’s Day” at the Illinois State Fair, used to hold political events for the sitting governor’s party. The opposing political party gets its own day each year on the fair’s …