Author Michael Wolff to Do Another Political Book

Michael Wolff, author of the controversial "Fire and Fury," is set to write another political book,

Wolff told Axios he has again signed with Henry Holt, publisher of his tell-all book about President Donald Trump's White House. That book sold 2 million copies in the United States.

Trump had called "Fire and Fury" 

Wolff conceded it is uncertain what his new book will focus on.

"It'll obviously deal with American politics at this point in time," he said.

But Wolff added: "It's untitled, unscheduled, unfocused."

Axios noted Wolff's best sources have left the White House since "Fire and Fury" came out.