Early voting opened on Monday in Texas, South Carolina, Arkansas, Alaska, Colorado and Connecticut. This rollout comes two weeks before the final day of polling on 3 November.
Voters across the country will decide all 435 seats in the US House of Representatives and select more than one-third of the 100 members in the United States Senate.
Citizens will simultaneously cast ballots for governorships, state legislative seats and local ballot initiatives. In Texas, early voting stays open through 30 October, with polling hours varying from county to county.
Texas features a closely watched Senate race. The contest pits Republican state Attorney General Ken Paxton against Democratic state Representative James Talarico.
South Carolina opened its early voting period to run through 31 October. Polling stations operate from 8.30 am to 6 pm, Monday through Saturday, while staying closed on Sunday, 25 October. Voters must present photo identification.
The Senate race in South Carolina features Republican incumbent Darline Graham. She took the seat after the death of her brother, Senator Lindsey Graham. She faces Democratic challenger Annie Andrews in an election that also includes an open gubernatorial contest.
In Arkansas, early voting continues until 5 pm local time on 2 November. Republican Senator Tom Cotton faces Democratic challenger Hallie Shoffner there.
Arkansas Governor Sarah Huckabee Sanders, a Republican, is seeking reelection. She faces Democratic candidate Fredrick Love and Libertarian Colt Shelby.
State election officials in Arkansas require valid photo identification. Voters may present qualifying official documents, such as utility bills or government paychecks, before receiving a ballot.
In Alaska, in-person early and absentee voting began at designated locations and runs through Election Day on 3 November. The Alaskan Senate contest matches Republican incumbent Dan Sullivan against former Democratic Representative Mary Peltola. Voters will also select a successor to term-limited Governor Mike Dunleavy.
Colorado voter centers opened statewide following the earlier opening of ballot drop boxes. Connecticut launched a 14-day early voting period running through 1 November, with polling stations operating daily from 10 am to 6 pm local time.
