Early voters are leaning toward Clinton.

Over 3 million voters in key US states have cast early ballots to choose the next president. Initial polls show that Hillary Clinton's Democratic Party is leading.

Candidate Hillary Clinton during the third debate. (Photo: AFP)

According to the Washington Post, although there are still 18 days until the official presidential election, more than 3.3 million people in key US states have already cast early votes, equivalent to about 3% of registered voters.

Initial data suggests that Democratic voters are increasingly dominant in early-voting states like North Carolina, Nevada, Arizona, and even Utah, compared to the 2012 election.

Specifically, according to a CNN and Catalist poll, the number of Democratic voters casting early ballots in North Carolina remained stable compared to 2012, while the number of Republican voters decreased by 14,500.

In Arizona, the Democrats are currently leading, although the number of registered Republican voters is higher than that of Democrats. In Ohio, the number of Democratic voters casting early ballots is also higher than that of Republicans.

Most surprisingly, perhaps, is the state of Utah, where the Democratic Party is gaining an increasing advantage. At this time in 2012, the Republican early vote count was about 22,000 votes higher than the Democratic vote, but this year, that gap has narrowed to just over 3,500 votes.

The most positive news for Donald Trump's Republican party comes from Iowa. While in 2012, the number of Democratic voters who cast early ballots was more than 53,700 higher than Republican voters, this year the difference has narrowed to 38,280.

Meanwhile, in states that traditionally favored Clinton, such as Virginia and Wisconsin, the number of early voters also surged compared to 2012. Specifically, in Wisconsin, the number of early voters reached over 46,000, more than three times the number in 2012.

In Georgia, a Republican stronghold, the number of early voters increased by approximately 25% compared to the same period in 2012. In Virginia, the number of early voters increased by more than 18,000.

Preliminary data from early voting suggests an advantage for Clinton and a disadvantage for Trump, but the final outcome cannot yet be confirmed.

Reportedly, following the final debate on the evening of October 19th, the two presidential candidates are actively campaigning in key states such as Ohio, North Carolina, Pennsylvania, and Florida. Experts believe that if Trump loses in states including Florida, Pennsylvania, and North Carolina, Clinton will certainly win. For his part, Trump continues to stir controversy by declaring that he will only recognize the election results if he wins the November 8th vote.

According to Dan Tri