He was serving a 7-year sentence for tax fraud and conspiracy in 2019 which resulted from special counsel Robert Mueller’s investigation into the 2016 Trump campaign.
Manafort's lawyers pointed out that he is 71 years old and suffers from a number of maladies, including "high blood pressure, liver disease, and respiratory ailments." In the letter, first obtained by CBS News, the lawyers noted that he was hospitalized for several days in December for a heart condition, and in February, that he became ill with influenza and bronchitis.
They added that Manafort "currently takes 11 prescription medications daily to treat his various health conditions, 8 of which are relevant to the requested relief." His lawyers said that the medications, along with his health history, "make plain that Mr. Manafort is at a significantly higher risk for serious illness or death."
His lawyers wrote on April 13, "Even though there are no reported cases of COVID-19 at FCI Loretto at this time, given the growing number of cases in Pennsylvania and increasing challenges in testing inmates and staff potentially exposed to COVID-19, it is only a matter of time before the infection spreads to staff and inmates at FCI Loretto, at which time it may be too late to prevent high-risk inmates, such as Mr. Manafort, from contracting the potentially deadly virus," his lawyers said.