Founded in 2003, Center for American Progress (CAP) is one of the youngest—yet most influential—think tanks on this list. With the motto “Progressive ideas for a strong, just, and free America,” CAP deals in major domestic issues such as Economic Policy, Education, Health, Security and International Affairs, and Social Policy. CAP’s influence climaxed during the 2008 Presidential election, due in part to its campus outreach group, Generation Progress. In fact, referring to the program’s success, Time magazine said, “Not since the Heritage Foundation helped guide Ronald Reagan’s transition in 1981 has a single outside group held so much sway.”
Website – Center for American Progress