Something that has already been done: “The company president did not discuss the new hiring policy with her board of directors; instead she put it into effect and presented the board with a fait accompli.” From French, meaning “an accomplished fact.”
Fait accompli is a French phrase which means literally "an accomplished deed". It is commonly used to describe an action which is completed before those affected by it are in a position to query or reverse it. Perhaps the nearest English equivalent is a "done deal".
** Rakesh K. Jain is the Andrew Werk Cook Professor of Tumor Biology at Massachusetts General Hospital in the Harvard Medical School and Director of the E.L. Steele Laboratories for Tumor Biology
at the Massachusetts General Hospital. 
He has mentored more than 200 graduate and postdoctoral students from over a dozen different disciplines. Jain's research findings are summarized in more than 600 publications, which
have been cited more than 70,000 times (as of December, 2015).
He was among the top 1% cited researchers in Clinical Medicine
in 2014-15. He serves or has served on advisory panels to government, industry and academia, and is a member of
editorial advisory boards of 22 journals, including Nature
Reviews Cancer and Nature Reviews Clinical Oncology. He has
received more than 75 awards from engineering and medical professional societies/institutions, and is a member of the
American Academy of Arts and Sciences as well as all three
branches of the US National Academies – the National Academy
of Medicine, the National Academy of Engineering and the
National Academy of Sciences. In 2014, he was chosen as
one of 50 Oncology Luminaries on the occasion of the 50th
anniversary of the American Society of Clinical Oncology. In 2015,
Jain received honorary doctorates from Duke University, KU Leuven, Belgium and IIT-Kanpur, India. In 2016, he received the National
Medal of Science.