Daniel Samuel "Dan" Senor (/ˈsiːnər/; born November 6, 1971) is an American columnist, writer, and political adviser. He was chief spokesman for the Coalition Provisional Authority in Iraq and senior foreign policy adviser to U.S. presidential candidate Mitt Romney during the 2012 election campaign. A frequent commentator on Fox News and contributor to The Wall Street Journal, he is co-author of the book Start-up Nation: The Story of Israel's Economic Miracle (2009).