The country’s two most populous states, California and Texas, begin early voting on Monday along with Montana, Georgia, Nebraska, New Hampshire and South Carolina.

Here is everything you need to know about the voter registration and early voting plans for each state.

Georgia has voted Republican in all but two elections in the last four decades. The first was former President Clinton’s landslide win in 1992, and the second was 2020, when President Biden brought the state back to the Democrats by 11,779 votes.

A win for either candidate here would make their path to victory easier. The Peach State has 16 electoral votes on offer, and with recent polls showing a tight race, it’s ranked Toss Up on the Fox News Power Rankings.

Democrats do well in metro Atlanta, home to more than half the state’s population, and particularly its densest counties, Fulton and DeKalb. There is a higher concentration of Black and college voters there. The surrounding suburban areas also help Democrats run up the vote.

Republicans win big with rural voters, who can be found just about everywhere else. The GOP won all but 30 counties in the last election, with many of the largest victories in the sparse northwest and southeast regions.

Over in the northwest of the country, Montana is a Republican stronghold at the presidential level, but it also hosts one of the most competitive Senate races in the country this cycle. Incumbent Democratic Sen. Jon Tester faces Republican Tim Sheehy in a race where Trump’s popularity and Sheehy’s discipline gives the GOP an edge. It’s Lean R on the rankings.

Finally, absentee in-person voting begins today in Nebraska, where absentee voting is already underway. The state is home to three competitive races.

Voting also begins today in nine House districts ranked Lean or Toss Up on the Fox News Power Rankings. For a full list of competitive races, see the latest Senate and House rankings.

This is a guide to registration and early voting. For comprehensive and up-to-date information on voter eligibility, processes and deadlines, please go to Vote.gov and the election website for California.

California began absentee voting on Monday, and the state will proactively send absentee ballots to actively registered voters. That ballot must be delivered to state officials by Nov. 5.

California offers early in-person voting, but the dates vary by location. Check the state’s website for more information.

California residents can register to vote online or by mail through Oct. 21. They can register in-person during early voting from Oct. 7 through election day.

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This is a guide to registration and early voting. For comprehensive and up-to-date information on voter eligibility, processes and deadlines, please go to Vote.gov and the election website for Montana.

Montana began absentee voting on Monday. Residents do not need to provide an excuse in order to receive a ballot. State officials must receive a ballot request by Nov. 4, and that ballot must be delivered to state officials by Nov. 5.

Montana offers early in-person voting beginning Oct. 7 and running through Nov. 4.

Montana residents can register to vote by mail through Oct. 7. They can register in-person during early voting from Oct. 7 through election day.

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This is a guide to registration and early voting. For comprehensive and up-to-date information on voter eligibility, processes and deadlines, please go to Vote.gov and the election website for Georgia.

Georgia began absentee voting on Monday. Residents do not need to provide an excuse in order to receive a ballot. State officials must receive a ballot request by Oct. 25, and that ballot must be delivered to state officials by Nov. 5.

Georgia offers early in-person voting beginning Oct. 15 and running through Nov. 1.

Georgia residents must have registered to vote by Oct. 7.

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This is a guide to registration and early voting. For comprehensive and up-to-date information on voter eligibility, processes and deadlines, please go to Vote.gov and the election website for Nebraska.

Nebraska began absentee voting last month. Applicants do not need to provide an excuse to receive a ballot. The state must receive a ballot application by Oct. 25, and that ballot must be delivered to state officials by Nov. 5.

Nebraska began early in-person voting on Oct. 7, and it will run through Nov. 4.

Nebraska residents can register to vote online or by mail through Oct. 18. They can register in-person through Oct. 25.

This is a guide to registration and early voting. For comprehensive and up-to-date information on voter eligibility, processes and deadlines, please go to Vote.gov and the election website for New Hampshire.

New Hampshire began absentee voting on Monday. Applicants will need to provide an excuse to receive a ballot. The state must receive a ballot application by Nov. 4, and that ballot must be delivered to state officials by Nov. 5.

New Hampshire does not offer early in-person voting.

New Hampshire does not offer voter registration by mail or online. Residents can register to vote in-person on election day. Check the state’s website for more information.

This is a guide to registration and early voting. For comprehensive and up-to-date information on voter eligibility, processes and deadlines, please go to Vote.gov and the election website for South Carolina.

South Carolina began absentee voting on Monday. Applicants will need to provide an excuse to receive a ballot. The state must receive a ballot application by Oct. 25, and that ballot must be delivered to state officials by Nov. 5.

South Carolina will begin early in-person voting on Oct. 21, and it will run through Nov. 2.

South Carolina residents can register to vote online, in-person and by mail by Oct. 14. 

This is a guide to registration and early voting. For comprehensive and up-to-date information on voter eligibility, processes and deadlines, please go to Vote.gov and the election website for Texas.

Texas began absentee voting on Monday. Applicants will need to provide an excuse to receive a ballot. The state must receive a ballot application by Oct. 25, and that ballot must be delivered to state officials by Nov. 5.

Texas will begin early in-person voting on Oct. 21, and it will run through Nov. 1.

Texas residents must have registered to vote by mail or in-person prior to Oct. 7. By-mail requests must be postmarked by Oct. 7.