I get packages from Europe via DHL every week at work. They are never handed off to USPS, they come in a DHL van. However, they certainly might use USPS for some residential deliveries.
What DHL doesnt do anymore is US->US (domestic) shipments. International delivery is still definitely handled in the US by DHL themselves.
What DHL doesnt do anymore is US->US (domestic) shipments. International delivery is still definitely handled in the US by DHL themselves.