Federal investigation rekindles debate over Trump’s 2020 election claims

A fresh federal probe into the 2020 United States presidential election has resurfaced controversy surrounding claims that the vote may have been manipulated, after Arizona Senate President Warren Petersen confirmed that records linked to the election audit in Maricopa County were handed over to the Federal Bureau of Investigation.

Petersen said the documents were provided last week in response to a federal grand jury subpoena , marking the latest development in continuing federal scrutiny of election processes in key battleground states. The investigation follows renewed efforts by allies of former US president Donald Trump, who has long maintained that the 2020 vote was “rigged,” a claim widely rejected by courts and election officials.

The controversy stems from the 2021 audit of ballots in Maricopa County commissioned by Republican lawmakers. The review was conducted by private firm Cyber Ninjas and examined more than 2.1 million ballots cast in the county. The audit explored several unusual theories—including examining ballots for bamboo fibres to test whether they had been imported from Asia—though it ultimately concluded that its manual count showed no substantial difference from the official tally .

Official results showed that Democratic candidate Joe Biden won Maricopa County by about 45,000 votes , helping him secure the state of Arizona by roughly 10,500 votes . The audit itself reported that Biden actually received slightly more votes than originally recorded .

Multiple recounts, court challenges, and bipartisan reviews across the US have so far found no evidence of widespread fraud capable of altering the national outcome . Experts say that while isolated irregularities occasionally occur in elections, the probability of a coordinated nationwide manipulation without detection is considered extremely low.

Nevertheless, supporters of Trump argue that further scrutiny is necessary, pointing to questions around voter data access and election administration . The Justice Department’s latest move suggests that federal authorities continue to examine election procedures, even as critics warn that prolonged investigations risk deepening political divisions over the legitimacy of the 2020 vote.