Mary Lincoln Extra Credit Questions

[RJNorton]

I was surprised to read what an author wrote in a review of Michael Burlingame's An American Marriage: The Untold Story of Abraham Lincoln and Mary Todd.

"Burlingame is correct in concluding that more objective biographical work needs to be undertaken about Mary Lincoln, and his conclusions as laid out in this book will stand the test of time. Like it or not (and Mary's defenders certainly will not), Burlingame has made a powerful case against Mary Lincoln and shown that her part in Abraham Lincoln's story was likely more damaging than it was beneficial."

What is the name of the author who wrote this?