>> yeah, the post office is running as well as it has in a long time. >> reporter: reports of slowed-down mail delivery have made headlines across the country, with concerns about more than voting. michael miller, who has been ea, sa hislderly n rural ohio customers are worried about their prescriptions, telling "the columbus dispatch," especially with the pandemic going on, they don't want to go out. in the town of humble, texas, don white tells us the medicine he takes to treat his heart disease took some two weeks to arrive. >> i went almost a week without medication, after i finished up my doses i had and the three-day extras that i had for emergency. it was almost a week that i didn't have that heart medication. >> reporter: president trump has made baseless charges about mail fraud in the election, but he insists he's not trying to slow down mail delivery. the postmaster general will be testifying before the senate, homeland security and government