President Barack Obama pleaded for fiscal responsibility from those charged with spending the stimulus money.
He delivered a financial pep talk at a White House summit.
The event was a chance for state leaders to offer stimulus ideas and to hear from cabinet secretaries.
The President said the American people's trust depended on how the officials handled the $787 billion in funding.
"My main message is I think you are up to the task," Obama told the assembled audience. "I think you guys will do extraordinarily well with using these precious tax dollars the American people have given up in order to deliver on the kind of economic growth, short term and long term and job creation that is going to be so important. But we are going to have to work hard to make sure that every dollar is well spent.
The President said any misuse of the money would be made public.