Voters in 21 states are banned from wearing MAGA hats, Kamala Harris buttons and other political gear while voting.
Every state in the US bans campaigning near voting booths, and all but a handful have stricter restrictions on more passive advertising.
These little-known rules have led to at least two high-profile clashes in South Carolina and Texas during past votes this past week.
A poll worker in Bexar County, Texas, was even punched multiple times in the face by a Donald Trump supporter who refused to remove his hat.
This early voter in Chicago, Illinois, had no problem voting based on her choice of clothing
Trump clothing has caused the most drama so far, but the rules do not distinguish between voters of either party.
Alaska, Arkansas, Arizona, Colorado, Ohio, Washington and West Virginia are the only states that do not explicitly ban election materials such as signs and flyers, or clothing such as hats, buttons and shirts.
Another 22 states and the District of Columbia ban only election materials, placards, signs, banners and literature.
Both clothing and election materials are banned in 22 states, including Texas, New York, Michigan, California and South Carolina.
Some states have exceptions in their election laws, such as Maine, which bans campaign clothing but allows buttons smaller than three inches.
The National Conference of State Legislatures maintains a extensive list of all objects and activities prohibited at polling stations, and how far the prohibitions extend.
Every state in the US bans campaigning near voting booths, but all but a handful have stricter restrictions on more passive advertising.
Some voters were forced to remove clothing that supported a candidate and cast their votes in underwear, like this woman
Other rules include 29 states banning influencing or persuading voters, 18 states and DC ban petitions, and 10 states ban sounds referencing candidates.
Another nine states ban loitering, and six ban exit polls.
Voters who show up with prohibited items are asked to leave them outside or they will be denied access to the voting booth.
Some voters were forced to remove clothing that supported a candidate and cast their votes in underwear, or at least turn them inside out.
A woman in an unnamed state was photographed wearing just a bra after being forced to take off her Trump shirt.
A South Carolina voter lashed out at the polling place last week after refusing to take off his Trump hat while casting his ballot
‘Woman comes to vote in Trump gear. They tell her she can’t do that. She calls the poll worker ad**khead and rips her shirt off,” the voter who took the photo wrote online.
A South Carolina voter lashed out at the polling place last week after refusing to take off his Trump hat while casting his ballot.
The unnamed man, who was wearing a “Let’s Go Brandon” hat, was asked by Orangeburg County Library staff to take his hat outside due to state law.
Video footage of the altercation shows him erupting over the request.
Furious, He then removes the cap in front of another woman, waves it in her face and tells her: ‘This is my motherf**king’.
In a similar incident, a Texas man is facing a felony charge after punching an elderly poll worker who asked him to remove his MAGA hat.
Jesse Lutzenberger allegedly lashed out at the 69-year-old man who had to be treated at the scene on October 25.
He eventually took off the hat and voted, but put it back on as he left, and a poll worker again told him to take it off until he got outside.
As the clerk escorted him out, Lutzenberger allegedly threw an elbow or arm at him and then turned to punch him in the face several times, local police said.