Ruth, a middle-aged voter in Florida, has so far voted for the Republican party, but has not known who to choose in this year's election.

Ruth, a software trainer, said that over the past four years, she has grown disliked by President Donald Trump.

In February, Ms. Ruth turned to support the Democratic Party.

The "unknown" like Ruth can have a huge impact on the results of the presidential election.

Undecided voters are "critical when elections are coming to an end," said Michael Frias, chief executive of data company Democrat Catalist.

"The problem is that it is not clear what keeps them undecided or whether they vote. And it is not clear what the campaign can make them change," said Yanna Krupnikov, associate professor of political science.

William, a 27-year-old father with two children in Missouri, said he wants Biden to win in November, but isn't sure if he really wants to vote for the Democratic candidate, especially while living in a state known as "base.

As for Ruth, she said she had given her "homework" in the days leading up to the election, in which she would study two parties to try to choose one of the candidates.

Although there are still many undecided voters like Ruth or William, many observers say the number of "unknowns" this year is less than the 2016 election. "People probably understood more about their choices.

According to an analysis by Nate Silver of FiveThirtyEight, a website that analyzes polling data, about 13% of voters on election day 2016 have not decided or intended to vote for a third party candidate, while the

The 2020 election is somewhat more similar to 2012 than 2016, when polls show a majority of voters say they have made a decision and will not change.

Wasserman added that this year undecided voters are mainly among the young and Hispanic, while Coleman said voters who dislike both candidates this year will be an important part.

Sam Evans, 26, who served in the US Air Force and now lives in Oregon, is in the group that doesn't like both candidates.

Evans added that he wanted Biden to win, but did not know whether to vote for him or not.

Bill Fleming, 27, in Atlanta, said he voted for a third party in this year's election because he doesn't believe Trump and Biden are different in how the country is run.

Kami, 28, from Texas, has yet to decide who to vote for.

Undecided voters are often the last to decide and people won't know how important their votes are until the end of the election, according to Stewart, Vox's editor.

"We don't yet know how the election will end. To say that undecided voters won't make a big deal, we'll have to know exactly how they allocate in states like that.

Kim Roberts, a 54-year-old voter in Florida, told polls she was undecided.

Observers added that undecided voters may not vote.

Many experts suggest that parties should focus more on their staunch support group, while others recommend moving toward wavering voters and the group that can be persuaded.

That was the case with Dwight Flakes, a 40-year-old black voter in Cleveland, who said the Democratic candidate's campaign was "superficial" for black voters.

Flakes said he did not like Trump but also did not vote for Biden because he wanted to oppose the President.

The Vice News / Ipsos survey conducted in late September to early October found that nearly three-quarters of participants said they believed American democracy was "broken" and two-thirds said that the politics

Editor Emily Stewart argues that no one will know what could change the decisions of voters who have not voted.

Sarah shared that she changed her mind thanks to a Facebook post that read: "Votes are not a valentine gift, you cannot show love for your candidate. It's a move for the world you want to live in".