CAP is hardly progressive. I'd say it's accurately socially-permissive centrist with a neo-imperialist bent. Remember: this is the same think tank that stood right behind the Republicans in the run-up to the Iraq and Afghanistan wars. When Iraq turned into a quagmire their tune changed. They still haven't given up hope on Afghanistan, but I imagine their view will change in the unlikely event Obama decides to go with Biden over McCrystal.