An automated message at the visitor center's hotline is delivering the news.
This will help the agency save $74,000 a week. That's the cost of paying 37 uniformed officers $50 an hour each week to secure the tour route.
This adds up to roughly $2 million a year.
Newt Gingrich tweeted, "Canceling white house tours is childish and dishonest. The golf weekend in Florida cost enough to keep the White House open for months."