the republicans must do better in the chicago-land suburbs in order to win illinois.
the gop did impriove in the suburbs in 04, but not well enough, obviously/
Going by the % Winning Margins, the Democrats did better in all suburban Chicago counties except for Will and McHenry. Will County is apparently having a population boom these days, gaining 100,000 people in 4 years. I wonder why, thats unusual outside the Sunbelt.
The Dems did slightly better in Kendall, Kane and Lake. The big surprise was the noticable improvement in DuPage County, which to me always seems like a Levittown-type place of all suburbs, any guesses why we'd do better there?
It would be interesting if there was a chart of how Cook County minus the city of Chicago voted in past elections. It would probably tilt towards the GOP but these days not by much.