A Paralympian vs a former TV news anchor - and other US Senate races to watch

Millions of Americans are about to decide the future of the Republican-controlled Congress in a midterm election that will have a significant impact on President Donald Trump's final two years in office.
All eyes are on a handful of Senate races that will decide control of the prized upper chamber.
A four-seat gain by Democrats would give them control - and with it the power to limit Trump's ambitions, reject his judicial nominations and investigate his administration.
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