Since my book The Worst President in History: The Legacy of Barack Obama, co-written with Mark Noonan, was self-published nearly a year ago, it has become a surprise success, selling thousands of copies and becoming an Amazon bestseller.

That success has opened some doors for me, and I now have a new book deal with Bombardier Books, a new nonfiction imprint of Post Hill Press.

My new book is titled The Scandalous Presidency of Barack Obama, and it will focus on the scandals, controversies, an...