US senator says that project, a key part of Trump’s voting restrictions, is ‘perilously rushed and potentially unlawful’

A new system to screen millions of mail-in ballots for this November’s US midterm elections was thrown together so hastily, and tested so little, that a single scanning glitch could see entire batches of ballots turned away, a whistleblower has told Congress.

The project – a key part of Donald Trump’s new restrictions on voting – is “perilously rushed and potentially unlawful”, according to the US senator Richard Blumenthal, who disclosed the warning in a letter to David Steiner, the postmaster general, on Tuesday.

President’s directive stalls for a second time about a week before the first postal ballots are due to be sent out

A federal judge on Thursday halted – at least for the moment – attempts to implement Donald Trump’s executive order limiting mail voting.

The president’s directive stalled for a second time about a week before the first mail ballots are due to be sent out for the rapidly approaching midterm elections. In the US district court, Judge Indira Talwani placed a 14-day hold on the government implementing the order in a case that could be headed back to the supreme court, which on Monday overturned an earlier ruling of hers that had blocked Trump’s order from taking effect.

Move from USPS comes amid Trump administration’s efforts to restrict mail-in voting in November’s midterms

The US Postal Service (USPS) said on ​Thursday ‌that ‌new ‌requirements for mail-in ‌voting are ​now ⁠in effect as Donald Trump seeks to crack down on the practice. The move is expected to trigger a new round of legal challenges.

The Trump administration has sought to impose new rules requiring state election leaders to submit their voter rolls for inspection as part of a broader bid to increase federal government oversight over voting and elections.