ATLANTA, Georgia (CNN) -- College senior Kyla Berry was looking forward to voting in her first presidential election, even carrying her voter registration card in her wallet.
But about two weeks ago, Berry got disturbing news from local election officials.
"This office has received notification from the state of Georgia indicating that you are not a citizen of the United States and therefore, not eligible to vote," a letter from the Fulton County Department of Registration and Elections said.
But Berry is a U.S. citizen, born in Boston, Massachusetts. She has a passport and a birth certificate to prove it.
The letter, which was dated October 2, gave her a week from the time it was dated to prove her citizenship. There was a problem, though -- the letter was postmarked October 9.
"It was the most bizarre thing. I immediately called my mother and asked her to send me my birth certificate, and then I was like, 'It's too late, apparently,' " Berry said.
Other pieces of note:
Such allegations have flared up across the United States during this election cycle, most notably in Ohio, where a recent lawsuit has already gone to the U.S. Supreme Court.
There, the state Republican Party sued Ohio's Democratic secretary of state in an effort to make her generate a list of people who had mismatched information. But Secretary of State Jennifer Brunner said generating such a list would create numerous problems too close to the election and possibly disenfranchise hundreds of thousands of voters.
The Supreme Court last week ruled against the GOP on appeal of a lower court order directing Brunner to prepare the list.
In Florida, election officials found that 75 percent of about 20,000 voter registration applications from a three-week period in September were mismatched due to typographical and administrative errors. Florida's Republican secretary of state ordered the computer match system implemented in early September.
In Wisconsin, Republican Attorney General J.B. Van Hollen sued the state's election board after it voted against a proposal to implement a "no-match" policy. The board conducted an audit of its voter rolls and found a 22 percent match failure rate -- including for four of the six members of the board.
The Brennan Center has also documented cases across the country of possible illegal purging, impediments to college student voting and difficulties accessing voter registration.
A lawsuit has been filed over Georgia's mismatch system, and the state is also under fire for requesting Social Security records for verification checks on about 2 million voters -- more requests than any other state.
One of the lawyers involved in the lawsuit says Georgia is violating a federal law that prohibits widespread voter purges within 90 days of the election, arguing that the letters were sent out too close to the election date.