“I want to thank the Air Force for certifying Falcon Heavy.”

Source: Air Force certifies Falcon Heavy, orders satellite launch for 2020 | Ars Technica

Word on the street is that ULA bid Atlas 5 551, *not* Delta 4 Heavy. In other words, this was a payload that single stick F9 could launch if they expended the first stage. If block 5 can be reused >3 times, it ought to be cheaper than single stick expendable and AIUI they’re pricing them accordingly.