But what are we supposed to make of the Trump campaign’s arguments against mail-in ballots and drop boxes? What does it mean?

“These are attacks on the mechanism of voting that have worked for many years in other states,” said Suzanne Almeida, former executive director of the League of Women Voters of Pennsylvania and currently interim director of Common Cause Pennsylvania.

While the idea of ballot drop boxes might sound odd to those who haven’t used them, they are growing in popularity.

In Denver, Colorado, one of the nation’s five vote-by-mail states, 80 percent of the people who returned their ballots in 2016 did so by depositing their vote into a secure ballot drop box. The city posted a breakdown of the results, even ranking its “Top Performing 24-Hour Drop Boxes.” (If you’re wondering, the most-used spot was the Denver Museum of Nature and Science.) In Washington state, another universal vote-by-mail state, drop boxes are located at various places, such as libraries, shopping centers, police departments, and schools.