 When comparing the effects of Housing First on homeless adults with lower or borderline intellectual functioning to homeless adults with normal intellectual functioning it has been shown that there is no significant difference.The United States Congress appropriated $25 million in the McKinney-Vento Homeless Assistance Grants for 2008 to show the effectiveness of Rapid Re-Housing programs in reducing family homelessness.In February 2009, President Obama signed the American Recovery and Reinvestment Act of 2009, part of which addressed homelessness prevention, allocating $1.5 billion for a Homeless Prevention Fund.