As more Americans vote by mail this year amid the Covid-19 pandemic, there’s concern that thousands of eligible voters could have their ballots rejected for small errors

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Reasons for mail-in ballot rejections (2016)
0%
25
50
75
100
Non-matching signature (27.5%)
Not received on time/missed deadline (23.1%)
No voter signature (20%)
“Other” reason given (14.8%)
No witness signature (3%)
Voter voted in person (1.3%)
All other reasons (10.2%)
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Reasons for mail-in ballot rejections (2018)
0%
25
50
75
100
Non-matching signature (15.8%)
Not received on time/missed deadline (26.9%)
No voter signature (13%)
“Other” reason given (34.9%)
No witness signature (2.5%)
Voter voted in person (1.4%)
All other reasons (2.2%)