A whistleblower from the U.S. Postal Service has raised concerns that a new system being developed to verify mail-in ballots may cause a large number of ballots to be rejected. This system is part of an executive order issued by former President Donald Trump, which aimed to limit mail voting by requiring the Postal Service to send ballots only to voters on specific lists. However, a federal judge recently halted the implementation of the system, and the Trump administration is appealing that decision, potentially leading to a Supreme Court review. The whistleblower claims that the Postal Service is working under extreme time pressure to develop the system, which would typically take a year, in just three months. This rush has led to potential issues, such as a single scanning error in a large batch of ballots potentially causing the entire batch to be rejected. The system is meant to be used in the upcoming midterm elections, but election officials have already warned that it may not be ready in time. The executive order, signed in March, required the U.S. Citizenship and Immigration Services and the Social Security Administration to create lists of eligible voters. The Postal Service would then only send mail ballots to voters on those lists, with specific requirements for ballot envelopes, including barcodes. A portal was created for states to submit their verified voter lists, but the whistleblower says the development of this portal has been rushed and sloppy. The system has faced legal challenges, with a U.S. District Court judge initially blocking its implementation before the November midterms. However, the Supreme Court recently allowed the system to move forward, though the judge has issued a temporary restraining order. The whistleblower's report highlights the risks of a system that has not been fully tested and could prevent eligible voters from receiving their ballots on time or at all.