Democratic senator Raphael Warnock appears to have a narrow lead against Republican challenger Herschel Walker in the final battle of the US midterm elections.
A CNN poll shows 52% of likely voters say they plan to support Warnock in Tuesday's runoff election with 48% picking Walker.
Although Democrats already have enough seats to hold control of the Senate - every race has major implications in a country as politically divided as the US, as Kate Fisher reports
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