The US Supreme Court has rejected an eleventh-hour bid by President Donald Trump to restrict the use of mail-in ballots just weeks before the upcoming midterm elections.

Lawyers representing the Trump administration had asked the high court to allow an executive order covering US Postal Service procedures. Under the proposed measures, the postal service would have been permitted to check mail-in ballots against a central repository of registered voters in each state, automatically rejecting any ballots submitted by voters not listed in the database.

The appeal marked the third time the Trump administration had asked the Supreme Court to intervene on the issue, reflecting the White House's significant push to exercise greater federal oversight over the voting process.

The timing is particularly crucial because the election timetable is already well underway. A large number of states are preparing to dispatch mail-in ballots to voters this month. North Carolina sent out its postal ballots on Friday, and six additional states are scheduled to follow suit by next week.

The proposed postal rules had faced intense pushback from opponents. Critics warned that implementing major rule changes at the eleventh hour risked creating widespread chaos in the immediate run-up to Election Day, potentially disenfranchising millions of American voters.

Mail-in voting has become a cornerstone of modern US elections, with roughly one-third of all voters now casting their ballots by post.

Arguing the government's case, Solicitor General John Sauer had decried a lower court judge's decision to block the executive order, describing that ruling as "baseless" and suggesting it threatened further confusion for the electorate.

Sauer told the Supreme Court: "Each day the injunction is in place risks sowing confusion and chaos because the injunction makes those preparatory steps voluntary, rather than mandatory."

The dispute has also sparked public demonstrations, including a 'Defend the Vote' rally in Washington, DC, as political debate intensifies over federal voting measures and ballot drop boxes ahead of upcoming elections.

Despite his vocal and persistent concerns regarding the postal voting system, Donald Trump himself voted by mail in the Florida Republican primary last month.

What we do not yet know is whether the administration plans to explore any alternative legal avenues in the remaining weeks before polling day, or how individual states will manage any further logistical challenges as postal voting expands.

With the high court's decision now final, state election authorities will continue issuing and processing ballots under existing rules. I'll be following this one — check back for updates.