What should I ask Walter Russell Mead?

He is a leading foreign policy expert, and I will be doing a Conversation with him.   Here is from Wikipedia:

Walter Russell Mead (born June 12, 1952) is an American academic. He is the James Clarke Chace Professor of Foreign Affairs and Humanities at Bard College and taught American foreign policy at Yale University. He was also the editor-at-large of The American Interest magazine. Mead is a columnist for The Wall Street Journal, a scholar at the Hudson Institute, and a book reviewer for Foreign Affairs, the quarterly foreign policy journal published by the Council on Foreign Relations.

His new book is The Arc of a Covenant: The United States, Israel, and the Fate of the Jewish People.

So what should I ask him?