The Trump administration also claims 250,000 noncitizens are registered in four states, as Mullin pushes election compliance.

The US Department of Homeland Security (DHS) is urging states to adopt a system for assessing voter rolls that has a history of returning faulty results, according to reports.

The Trump administration claimed that 250,000 noncitizens are registered to vote across four US states.

Separately, according to reports, Mullin is pushing states to comply with election demands, echoing the Trump administration's claims about risks in the upcoming midterm elections.