This story in the Miami Herald is by Lawrence Mower:

Mail ballots submitted by minority voters and young people were initially rejected at a higher rate than other groups in Florida’s 2020 presidential election, but most were able to resolve the errors, a new study by University of Florida professor Dan Smith found.

The ballots of younger voters were more than three times as likely as older voters to be initially rejected for signature issues, such as not including a signature on the outside of their ballot or the signature not matching the one on file with the county elections supervisor, according to the study.

And the ballots of racial and ethnic minority voters who voted by mail were over 60% more likely than white voters to be initially rejected. The rejection rates were inconsistent across the state’s 67 counties, however, indicating that the problems were not necessarily the fault of the voters.

Read the full story here.