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.