Key keywords: widespread voter fraud, Trump Department of Justice, 2020 US presidential election, voter fraud claims, election integrity, DOJ election probe, voting irregularity evidence, swing state election results Following the 2020 U.S. presidential election, former President Donald Trump and his allies repeatedly asserted that widespread voter fraud had altered the outcome of the race, pressing the U.S. Department of Justice (DOJ) under his administration to launch sweeping investigations into alleged voting irregularities across key swing states. Over the course of more than two years, the DOJ allocated millions of dollars in resources, assigned dozens of federal prosecutors and investigators, and reviewed over 1,200 individual complaints filed by Trump campaign officials, Republican poll watchers, and private citizens from states including Pennsylvania, Michigan, Georgia, Arizona, and Wisconsin. Investigators conducted thousands of interviews with local election administrators, poll workers, ballot counters, and voters named in fraud allegations, cross-referenced voter rolls with death records, signature verification logs, and mail-in ballot tracking data, and audited tens of thousands of ballots targeted in fraud claims. A series of internal DOJ memos and congressional testimony released in 2023 and 2024 confirm that the vast majority of alleged fraud incidents were either unsubstantiated hearsay spread via social media, clerical errors corrected during standard election canvassing processes, or isolated cases of individual voter misconduct that impacted fewer than 500 total votes nationwide. Notably, then-Attorney General Bill Barr publicly stated in December 2020 that the DOJ had found no evidence of widespread voter fraud that would change the election result, a conclusion that drew sharp criticism from Trump and led to Barr’s resignation weeks later. Subsequent probes led by acting Attorney General Jeffrey Rosen, appointed after Barr’s departure, upheld the same finding, with DOJ staff repeatedly informing senior administration officials that there was no factual basis to support claims of systemic election fraud. As of 2024, the DOJ has filed fewer than 40 criminal charges related to 2020 election misconduct, all of which involve individual actors casting illegal ballots, with no evidence of coordinated, large-scale fraud efforts. The failure to find evidence of widespread fraud has sparked ongoing debates about the impact of unsubstantiated election claims on public trust in U.S. democratic institutions, with election security experts noting that voter fraud is extremely rare in U.S. elections, occurring at a rate of less than 0.0001% of all ballots cast.