Many claim the Founding Fathers were not Christians, but merely Deists.  Deism was all the rage at Harvard and other schools at the time of the founding of the United States.  Deism is belief in God as creator, but nothing else.  Deism today would say God caused the "Big Bang" but doesn't answer prayers, cause miracles or get involved in the life of humans.  The truth is all the Founding Fathers believed the U.S. should be a Christian nation, guided by Christian principles.  The Library of Congress issued an official statement on this topic, "[B]oth the legislature and the public considered it appropriate for the national government to promote nondenominational, non-polemical Christianity."