Members of the media watch the solar eclipse at the White House in Washington, U.S., August 21, 2017.

U.S. President Donald Trump watches the solar eclipse from the Truman Balcony at the White House in Washington, U.S., August 21, 2017.

White House Senior Adviser Ivanka Trump and Commerce Secretary Wilbur Ross (L) watch the solar eclipse from the Truman Balcony at the White House in Washington, U.S., August 21, 2017.

U.S. President Donald Trump watches the solar eclipse with first Lady Melania Trump from the Truman Balcony at the White House in Washington, U.S., August 21, 2017. REUTERS/Kevin Lamarque

U.S. President Donald Trump watches the solar eclipse with first Lady Melania Trump and son Barron from the Truman Balcony at the White House in Washington, U.S., August 21, 2017 REUTERS/Kevin Lamarque

Without his protective glasses on, U.S. President Donald Trump looks up towards the solar eclipse while viewing with his wife Melania and son Barron at the White House in Washington, U.S., August 21, 2017.

U.S. President Donald Trump watches the solar eclipse with first Lady Melania Trump and son Barron from the Truman Balcony at the White House in Washington, U.S., August 21, 2017.

U.S. Attorney General Jeff Sessions (L) and Commerce Secretary Wilbur Ross watch the solar eclipse from the Truman Balcony at the White House in Washington, U.S., August 21, 2017

U.S. President Donald Trump watches the solar eclipse with first Lady Melania Trump from the Truman Balcony at the White House in Washington, U.S., August 21, 2017. REUTERS/Kevin Lamarque - RTS1CPB7

U.S. President Donald Trump watches the solar eclipse with first Lady Melania Trump from the Truman Balcony at the White House in Washington, U.S., August 21, 2017.