The White House has an online petition system. Any petition that has 25,000 signatures will receive a response. A recent petition requested that work start on a defence project, it met the required count of responses and thus received a reply. Despite the support expressed by over 35,000 signatures; the defence project was declined. The response was penned not by the Defence Department but by the Chief of the Science and Space Branch at the White House Office of Management and Budget, who seems to have more of a sense of humour than might be the case for most Pentagon officials.
For the full text explaining why $850,000 trillion of spending is not on the cards in the next few years go to the link below