Daniel Samuel Senor is an American-Canadian 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 news commentator 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). He is married to television news personality Campbell Brown.