MIAMI – Justin Timberlake is one of the many voters sharing selfies while casting their ballots for the next president of the United States.
His Instagram photo caption, which defied his state's law, said, "I just flew from LA to Memphis to #rockthevote !!! No excuses my good people!
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"There could be early voting in your own town too. If not, November 8th."
As early voting began on Monday in Florida, many have done the same, despite a law in Florida that prohibits photographs in the polling room or early voting area.
The Florida law is part of the maintenance of "good order" at the polls. And with images linked to vote-buying or coercion, the ban was meant to protect the integrity of the voting process.
Social media supporters' effort to encourage others to vote has turned the ban into a first amendment issue.
The defenders of the ballot selfie include Snapchat and the American Civil Liberties Union. They have already pushed Michigan and New Hampshire to get rid of the ban.
In Tennessee, where Timberlake took his ballot selfie, violators could face up to 30 days in jail.
ABC News compiled a list of the states where ballot selfies are illegal:
- ALABAMA: Not allowed because voters have "a right to cast a ballot in secrecy and in private," said a spokesman for Secretary of State John Merrill.
- ALASKA: A state law bans voters from showing their marked ballots, but Division of Elections Director Josie Bahnke says there is no practical way to enforce it.
- COLORADO: Ballot selfies or any public dissemination of a marked ballot are considered a misdemeanor. A 2016 bill to repeal the ban failed.
- GEORGIA: Law prevents photos of ballots or the screens of electronic voting machines.
- ILLINOIS: Banned by a law that considers "knowingly" marking your ballot so that another person can see it is a felony that carries of prison sentence of one to three years.
- KANSAS: Secretary of state says a selfie showing a picture of the actual ballot violates state law.
- MASSACHUSETTS: Taking a photo of a completed ballot in a polling location is banned in Massachusetts. But the state's top election official, Secretary William Galvin, says there's little the state can do to prevent it. Photos of mailed ballots are also banned.
- MICHIGAN: Michigan bans photographs of ballots, but a resident is challenging the law as unconstitutional.
- MISSISSIPPI: Photos showing how someone marked their ballot after voting are prohibited.
- NEVADA: Photos inside polling places are not allowed, except by the media. Photos of mailed ballots are also banned.
- NEW JERSEY: Law prohibits voters from showing their ballot to others. A pending legislative measure would allow voters to take photos of their own ballots while in the voting booth and share it on social media.
- NEW MEXICO: Law prohibits voters from showing their marked paper ballot "to any person in such a way as to reveal its contents."
- NEW YORK: Photos showing a completed ballot or indicating how a person cast their vote are not allowed.
- NORTH CAROLINA: Photographing or otherwise recording a voted official ballot is not allowed.
- SOUTH CAROLINA: Law bars voters from allowing their ballots to be seen. A 2012 state attorney general's opinion says that makes it illegal to reproduce a ballot by cellphone, video camera or iPad.
- SOUTH DAKOTA: Secretary of State Shantel Krebs says ballot selfies are not allowed because they can be considered influencing a vote or forcing someone to show proof of voting.
- WISCONSIN: State law prohibits sharing photos of ballots.