The U.S. government is reallocating hundreds of immigration officers, whose primary duty was to process legal status applications, to investigate potential voter fraud. This decision follows former President Donald Trump’s unsubstantiated assertion that noncitizens voting could have a significant impact on U.S. elections.

The reassignment aims to bolster the federal effort behind Trump’s claim, despite a lack of evidence supporting it.

The Washington Post spoke to three former officials who confirmed the changes, highlighting the government’s current focus on addressing alleged election fraud issues.

In 2016, voters in Exeter, New Hampshire, headed to polling stations, where concerns about voter fraud were not prominent. The current shift in federal resources underscores a broader investigation into election integrity, tasked to immigration officers.