Four U.S. senators sent letters grilling the nation’s major credit bureaus on Thursday after a ProPublica investigation showed two of the bureaus were fixing fewer consumers’ credit reports.

The letters came in response to a ProPublica investigation from March, which found that two of the three major credit bureaus — TransUnion and Experian — had substantially scaled back how often they provided relief to complaints filed through the Consumer Financial Protection Bureau. The decline in relief coincided with the Trump administration’s attempts to conduct mass layoffs at the CFPB and roll back much of its oversight of the financial sector.

The letters’ lead author is Sen. Elizabeth Warren, D-Mass., the ranking member of the Senate Banking Committee and a key architect in the creation of the CFPB. Democratic Sens. Tammy Duckworth, Andy Kim and Lisa Blunt Rochester also joined the letters.

ProPublica found that TransUnion’s rate of relief, which had remained relatively steady for several years, dropped sharply in the summer of 2025. By October it was providing relief roughly half as often. Experian, which had provided relief to nearly 20% of consumer complaints in 2024, provided relief to less than 1% of complaints in 2025, according to the CFPB’s data.

Companies are required to respond to consumer complaints filed through the CFPB, and relief can be financial or nonmonetary, for instance, fixing an error on a credit........

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