Pre-trump's attempts to eliminate the department, almost $20 billion.

https://www.consumerfinance.gov/enforcement/enforcement-by-t...

Their mere presence was effective. I know people who had trouble with banks refusing to fix their own screwups and demanding evidence that couldn’t exist.

They changed their tune the second there was an open case on the matter.

Also of note is they were responsible for medical debt cases, which are particularly difficult for people to resolve because of the shared responsibility between the patient and the insurer, which allows the insurer to deflect responsibility until the bill ends up in collections.