Obama did exceptionally well in Hillary Clinton’s old backyard, Maine Township. With absentee and provisional ballots still to be counted today, he held a slim lead over Clinton in her hometown of Park Ridge. Throughout Maine Township, Obama won 46 of 128 precincts and tied with Clinton in three others, finishing with 9,719 votes, (47.58%) to Clinton’s 10,279 (50.32%).

The vote results are unofficial but nearly complete. County Clerk David Orr said Thursday about 4,000 late-arriving absentee ballots remain outstanding and roughly 4,700 provisional ballots must be reviewed.

The number of Democratic primary ballots cast in the suburbs jumped significantly, with nearly 76 percent of voters taking Democratic ballots and 23 percent Republican.

The 579,443 total votes in suburban Cook breaks the previous record of 561,828 set in the 1984 presidential primary. As for percentage of registered voters, the 43 percent turnout Tuesday was the highest since 44 percent voted in 1952.

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