He's an Establishment man. I suspect he says this so the Esstablishment can marginalize the growing liberty aka Paul movement. This way they control those dissenting voices by co-opting them. The same way the Tea Party was co-opted by GOP militarists.
“The power to declare war, including the power of judging the causes of war, is fully and exclusively vested in the legislature.” ~ James Madison, Father of the Constitution
“We do not believe in aggressive or preventive war. Such war is the weapon of dictators, not of free democratic countries like the United States.”~ Truman, Sept 1, 1950