New book by Dick Cheney takes on Barack Obama

In this September 2014 file photo, former U.S. Vice President Dick Cheney speaks at the American Enterprise Institute (AEI) in Washington, about the current state and future of American foreign policy.

NEW YORK — The next book by former Vice President Dick Cheney is aimed directly at President Barack Obama.

Cheney’s “Exceptional: Why the World Needs a Powerful America” will be published on Sept. 1 by Threshold Editions, the publisher announced Tuesday. The book, co-authored by Cheney’s daughter Liz Cheney, contends that Obama has abandoned a decades-long tradition of American global leadership. In a statement issued by Threshold, a conservative imprint of Simon & Schuster, the former vice president said Obama had “significantly diminished” U.S. power at a time of a “rapidly growing” terrorist threat.

Cheney, a Republican, has been an emphatic critic of Obama, a Democrat, recently calling him the worst president in his lifetime. Cheney’s previous books include the memoir “In My Time” and “Heart,” about his long battle with cardiac disease.