15 million mail ballots

A significant number!

15 million mail ballots is a substantial portion of the total votes cast in an election. To put this number into perspective:

Mail ballots have become increasingly popular in recent years, driven in part by concerns about the COVID-19 pandemic and the desire to reduce in-person voting lines. Many states have also expanded their mail ballot programs to make it easier for voters to cast their ballots from home.

It's worth noting that mail ballots can be a convenient and secure way to vote, as they allow voters to cast their ballots from the comfort of their own homes and reduce the risk of in-person voting errors. However, they can also be vulnerable to fraud and other issues if not properly secured and monitored.

Overall, 15 million mail ballots is a significant number that highlights the growing trend towards mail-in voting in the United States.