Democrats accuse President Trump of trying to steal the election by sabotaging the U.S. Postal Service and starving it of funding, but industry experts say the agency’s woes are the product of years of financial mismanagement.

Long-running problems have come to a head, though, as states plan for greater mail-in voting as a response to the pandemic, drawing resistance from Trump, who has long criticized both mail-in voting and the Postal Service.