Best-selling author and Fox ratings king Bill O’Reilly may soon regret writing about a historical figure whose aides are still alive. Because in writing Killing Reagan, O’Reilly and co-author Martin Dugard have now drawn fire from 10 former White House biggies and Reagan biographers.

A.B. Culvahouse, counsel to Ronald Reagan, called the book “myth” and urged that it “be returned to the dustbin of fiction masquerading as history.”