Dan Senor is an executive at Elliott Management and co-author of the best-seller Start-Up Nation: The Story of Israel's Economic Miracle . He was a senior advisor to Paul Ryan's 2012 campaign for vice president and foreign policy advisor to Mitt Romney's presidential campaigns. A former Defense Department official, Senor has been based in Baghdad and at US Central Command in Qatar, and was a US Senate aide in the 1990s. He has written for the Wall Street Journal , New York Times , USA Today , and Washington Post . He lives in New York City. Saul Singer is the co-author of the best-selling book Start-Up Nation: The Story of Israel's Economic Miracle . He is a former Editorial Page Editor and columnist at the Jerusalem Post . In Israel, Singer has briefed visiting executives from or spoken at the Israeli headquarters of companies such as: Johnson & Johnson, Proctor & Gamble, Xerox, General Electric, IBM, AT&T, Microsoft, and DuPont.

Before moving to Israel in 1994, he served for ten years as an advisor to different U.S. Members of Congress and on the staffs of the U.S. House Foreign Affairs and Senate Banking Committees. He lives in Jerusalem with his wife and three children.