Trump claims the US is what concerning mail-in voting?

The statement that the U.S. is the only country to use mail-in voting reflects a common claim made by Trump regarding the uniqueness of the American electoral process. This assertion underscores a belief that the widespread implementation of mail-in ballots is not present in other democratic nations. However, in reality, many countries around the world use some form of mail-in voting or absentee ballots, which means that this claim overlooks the broader international context of electoral practices.

Comparatively, other options do not align with factual information. While some countries may have specific regulations about mail-in voting, the assertion that the U.S. is the only country using mail-in voting is inaccurate. It's essential to recognize the diversity of electoral systems globally, where various mechanisms facilitate voting, including mail, in numerous democracies.