// BBC WORLD NEWS — MONDO
A Paralympian vs a former TV news anchor - and other US Senate races to watch
Opponents in Iowa - Democrat Josh Turek and Republican Ashley Hinson
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.
Billions of dollars are being poured into the 35 races across the country, but only a handful could go either way.
There are seven Senate races deemed to be a toss-up by independent elections analyst Cook Political Report, external.
Here, we profile the personalities making waves in these much-watched contests.
This race has been marred by controversy over the appearance of a second candidate named Dan Sullivan on the ballot. The Republican senator of that name faces stiff competition from Mary Peltola and accuses her of introducing his namesake to confuse voters, which she denies.
Dan Sullivan is aiming for his third term against Alaska Native Mary Peltola
The race may ultimately be the tipping point state that decides which party controls the chamber if, as expected, Alaska is one of the slower states to reach an outcome.