Washington Post broke the story first on Jan 15. Other outlets have corroborated, like The Hill and Fox 43 (Pennsylvania). It seems Secretary Azar was being a bit misleading--there *was* a reserve, but it was already being released in December, so his announcement a week ago is not accompanied by any actual change in vaccine availability. States that were counting on an uptick in availability from that reserve are understandably annoyed.I don't know where you get the idea there were zero doses held in reserve in the US. According to the following article from January 12 about release of US reserves, "The Trump administration had been holding back millions of doses to ensure that those who received the first shot would get their second."