EXCLUSIVEOne in four Americans predict riots after the election and 10% fear a civil war whoever wins, poll finds

Fights have broken out at polling stations and election workers have gone through active shooter drills.

There have been threats to blow up political offices and ballot boxes have been set on fire. 

Before what could be the closest presidential election in history, staff trusted with overseeing the vote on Tuesday are already facing chaos and bracing for violence.

With memories of 2020 resurfacing, many have taken extra precautions to turn local precincts into fortresses and extra cops are being deployed nationwide on November 5.

The aftermath could also be fraught with friction, with some state officials warning the result could take days to be finalized in some of the seven battleground states.  

Razor-thin margins between Donald Trump and Kamala Harris in the polls show the result could depend on just a few thousand votes. 

According to an exhaustive DailyMail.com poll, the concerns are justified.

A Trump supporter, left, gets into a confrontation with a Harris fan outside an event for Tim Walz in Bristol Township, Pennsylvania, last week.

In the survey of 1,003 likely voters, conducted with J.L. Partners, more than 25 percent think there will be rioting whether Harris or Trump wins, and 10 percent fear there will be a civil war.

Just over one in five (22 percent) think a Democratic victory would lead to a repeat of January 6, and 21 percent think election sites or Democratic officials will be targeted by direct attacks.

Harris voters are more likely to believe that rioting will take place, while Republicans are split on whether the election will be run fairly.

If Donald Trump wins the Electoral College narrowly however, Americans think there is a higher chance of violence on the streets in the forms of furious protests.

Among the former presidents former supporters, 13 percent think there would be a civil war if Republicans were defeated.

With Harris supporters, nine percent believed there would be an all-out nationwide conflict if they are victorious. 

A similar number of Trump (18 percent) and Harris (16 percent) voters would back resorting to violence if they thought the election was unfair.

Fraud allegations across the country four years ago caused chaos in the closest states such as Pennsylvania, Georgia and Arizona.

Election workers received death threats and were faced with armed Trump supporters at polling locations.

The situation was unprecedented and has forced state governments to invest in resources such as more voting machines and safety.

With the country still divided in its support for two candidates who have vastly different visions for the country, there are still concerns of a repeat. 

Pennsylvania, arguably the most important state in the race, has already been at the center of fraud allegations that have made their way to the Supreme Court.

In the Keystone State, Edward Dieri Jr. was charged with threatening to blow up a Republican office in Montgomery County. 

Jeffrey Michael Kelly was arrested in Arizona on October 23 for allegedly shooting a Democratic campaign office three times.

He was also accused of putting signs outside his home with razor blades and a bag of a white powder attached. 

In San Antonio, Texas a man allegedly attacked a poll worker who asked him twice to remove his MAGA hat.

Political clothing is banned from polling places in many states, including Texas. 

Authorities working to put out a fire at a ballot box in Vancouver, WA started early Monday morning. It was one of two fires set at two ballot boxes in two separate states early Monday

In Oregon and Washington, the FBI and police are still hunting for an arsonist who set three ballot boxes alight. 

A Democratic congressman predicted last Thursday there may be blood if Harris wins.

Rep. Steve Cohen, D-Tenn, told NewsNations Dan Abrams that he believes the Democratic candidate will win both the Electoral College and the popular vote.

But he warned that he believes Trump will stop at nothing if the vice president  is declared the winner. 

Rep. Cohen told Abrams said he expects Harris to get at least 5 million more votes than Trump.

But I think Trump wont stop at anything. It will be in courts, it will be in litigation, it will be telling people again to go to the Capitol if you want to have a country and fight like hell, he continued. 

I mean, were going to have - there may be blood and theres some concern.