The President said the decision was made after new modeling made available to the White House estimated the death totals from the Coronavirus could run over 1 million unless strong mitigation efforts were taken by Americans.
At the White House, top federal experts endorsed the President's course change.
"We feel that the mitigation we are doing right now is having an effect
"The decision to prolong - not prolong, but extend - this mitigation process until the end of April, I think was a wise and prudent decision," said Dr. Anthony Fauci.
White House Coronavirus expert Dr. Deborah Birx said the 'growing number of potential fatalities' shown by the models made clear the need for more action to hold down the spread of the virus.
Birx told reporters it is "not a simple situation when you ask people to stay home for another 30 days, so they have to know that we really built this on scientific evidence and the potential to save hundreds of thousands of American lives."
“To every metro area out there, we have to do better," Dr. Birx said at the Sunday briefing.