Organizing for America, the campaign apparatus left over from Barack Obama's presidential run, is sending out its first call to action on Friday in support of the president's agenda, officials tell the Huffington Post. The organization, which is now housed within the Democratic National Committee, will be emailing everyone who has hosted a house party for the president, encouraging them to do the same in support of the White House-backed economic recovery package. Organizing for American has roughly 13 million e-mail addresses and two million active volunteers, though its strength in helping to advance specific legislative items has yet to be tested. There has been speculation over how often and to what extent the Democratic Party would take advantage of "the list," the concern being that over-saturation could blunt the response rate and reduce the investment voters had in the new administration.