The Connect U.S. Fund (CUSF) was a Washington, D.C.–based nonprofit that promotes responsible U.S. global engagement in issues like nuclear nonproliferation, human rights, climate change, and development.

[2] The initiative had emerged from a series of meetings among the founding partners in 2002 and 2003 when they discovered that they faced similar challenges, such as "limited public and private resources for foreign policy advocacy, media focus on a narrowly defined security agenda, and the absence of informed and empowered constituencies on global issues to hold policy makers accountable".

[3] He developed a program of grant-making and operations designed to promote a vision of responsible U.S. global engagement during the 2008 U.S. presidential election.

[4] Through a program of grant-making and operations designed to foster stronger collaboration among non-governmental organizations active on foreign policy issues, the Connect U.S. Fund sought to advance a vision for responsible U.S. global engagement in an increasingly interdependent world.

The Fund supported a community of foundations and non-governmental organizations working together to enhance the effectiveness of their collective advocacy efforts.