1. Senate election in Texas
Will Texas' Trump-backed, scandal-plagued attorney general, Ken Paxton, become the new senator, or will the controversial Democratic pastor James Talarico win? Texas has been solidly Republican for decades but is now leaning more toward purple, a reference to states where Republicans and Democrats are roughly evenly matched.
2. Michigan Senate election
Can left-wing Democrat Abdul El-Sayed become the new senator for the swing state of Michigan? Or will his Republican opponent, former congressman and FBI agent Mike Rogers, who has urged Trump in recent weeks to end the war in Iran, take the seat?
3. Senate election in Maine
Will centrist veteran Republican Susan Collins, who has represented Maine in the Senate since 1997, be unseated by state politician Troy Jackson, who in turn replaced oyster farmer Graham Platner, who has been accused of rape?
4. Senate election in North Carolina
Will Democrat and former governor Roy Cooper win a Senate seat for North Carolina, whose residents have voted for Donald Trump as president three times, or will Republican veteran Michael Whatley prevail?
5. Florida gubernatorial election
Will Trump loyalist and former House member Byron Donalds become Florida's first Black governor? Donalds has a significant lead over Democrat David Jolly in the increasingly conservative state of Florida, which is also the president's home state.
6. Senate election in Georgia
Will Democrat Jon Ossoff retain his Senate seat, despite his home state of Georgia having voted for Trump in two of the last three presidential elections? He is being challenged by Republican House Representative Mike Collins.
