Attorney General Bill Barr has authorized U.S. attorneys to conduct investigations into alleged voter fraud if there are "clear and apparently-credible allegations of irregularities" that could change the outcome of a federal election in a particular state, AP reports.

Why it matters: President Trump has refused to concede the election to President-elect Joe Biden, alleging a conspiracy of widespread voting fraud and corruption by Democratic election officials. He has thus far not provided specific evidence for his claims, which have been shot down by both Democratic and Republican secretaries of state.

Between the lines: Barr, who has long been a target of criticism by Democrats who allege he has politicized the Justice Department, testified in June that he has "no reason to think" that the 2020 election will be rigged.

• He has cast doubt on the reliability of mass mail-in ballots — baselessly claiming that foreign adversaries could sabotage the vote — but has cited "common sense" rather than any specific evidence of fraud.
• A Justice Department spokesperson did not immediately respond to a request for comment.

What to watch: States have until Dec. 8 to settle controversies and disputes over elections, including recounts and lawsuits, before members of the Electoral College meet to vote on Dec. 14. The Trump campaign has requested a recount on Wisconsin and has filed dozens of lawsuits in battleground states.