Ending mail-in voting and using paper ballots will gain republicans 100 additional seats

The assertion that Republicans would gain 100 additional seats by ending mail-in voting and switching to paper ballots is primarily based on political rhetoric rather than concrete evidence. While former President Donald Trump and some Republican leaders have promoted ending mail-in voting, citing concerns about fraud, multiple sources indicate that research does not conclusively show mail-in voting advantages either party significantly.bbc.combbc.comCan Trump really ban mail-in voting?

Legal experts emphasize that the authority to ban mail-in voting nationwide is limited, as election administration is largely controlled by states. Trump's push to end mail-in ballots would likely require state-level action rather than a federal executive order.justthenews.comjustthenews.comTrump's push for ending mail-in ballots and voting machines means process likely...npr.orgnpr.orgTrump wants to stop states from voting by mail and using voting machines : NPR

The figure of "100 additional seats" appears in partisan or speculative contexts, but there is no rigorous, nonpartisan analysis confirming such a large shift. Election outcomes depend on many factors beyond voting methods, including candidate quality, turnout, and local issues.news-pravda.comnews-pravda.comEND MAIL-IN VOTING, AND GO TO PAPER BALLOTSdailymail.co.ukdailymail.co.ukTrump celebrates Texas' win as a path to gaining 100 more Congressional seats...

Mail-in voting remains popular in many states and among various voter demographics.newsweek.comnewsweek.comMap Shows States Where Mail-in Voting Is Most—and Least—Popular Eliminating it could suppress turnout among groups that tend to vote Democratic, but the net effect on seat counts is uncertain and likely less dramatic than claimed.

Overall, the claim oversimplifies complex electoral dynamics and relies heavily on partisan projections rather than verified data or legal feasibility.