This story was originally published by ProPublica.

Across the country, federal judges are calling out Department of Justice lawyers, questioning in unprecedented ways whether they can be trusted to tell the truth or uphold centuries-old legal norms.

From Washington, D.C., to Rhode Island to Oregon, federal judges nominated by presidents from both parties, including Donald Trump, have zeroed in on what’s called “the presumption of regularity.” It essentially means that judges must presume that the government — whether it be federal prosecutors, an IRS auditor or an FBI agent — did their jobs according to the rules and in good faith.

Until Trump’s second term, which has seen an exodus of veteran DOJ lawyers and a transformative shift in priorities from issues like enforcing civil rights to instead defending a mass deportation agenda, this foundational tenet had rarely been discussed in federal courtrooms, former judges, lawyers and scholars say. But as Trump’s DOJ exhibits behavior that judges have called “unlawful,” “unethical,” “unseemly” or otherwise dishonest, adherence to that bedrock standard is now being questioned.