Yep, blame republicans.
"...Postal thefts skyrocket. Postal Police defunded in 2020.
U.S. Postal Service dealing with skyrocketing cases of mail fraud
"Postal Police officers ...were conducting mail theft prevention and letter carrier protection in the field until the summer of 2020, when they were defunded. Postal Police Officers are a highly trained uniformed police force specializing in mail theft prevention, the protection of postal employees, and the postal infrastructure..." ..."