 Wilson began to recover by the end of 1919 , but remained secluded for the remainder of his term , steadfast in his refusal or inability to accept changes to the treaty . Marshall was prevented from meeting with him to ascertain his true condition until his final day in office . It remains unclear who was making the executive branch 's decisions during Wilson 's incapacity , but it was likely the first lady with the help of the presidential advisers . 
