President Donald Trump formally signs his cabinet nominations into law, Friday, Jan. 20, 2017, in the President's Room of the Senate on Capitol Hill in Washington. (AP Photo/J. Scott Applewhite, Pool)

Protesters chant on the National Mall during a demonstration after the inauguration of President Donald Trump, Friday, Jan. 20, 2017, in Washington. (AP Photo/John Minchillo)

President Donald Trump is joined by the Congressional leadership and his family as he formally signs his cabinet nominations into law, Friday, Jan. 20, 2107, in the President's Room of the Senate on Capitol Hill in Washington From left are, Senate Majority Leader Mitch McConnell, R-Ky., Sen. Roy Blunt, R-Mo., Donald Trump Jr., Vice President Mike Pence, Jared Kushner, Karen Pence, Ivanka Trump, Melania Trump, Barron Trump, Speaker of the House Paul Ryan, R-Wis., Majority Leader Kevin McCarthy, D-Calif., House Minority Leader Nancy Pelosi, D-Calif. (AP Photo/J. Scott Applewhite, Pool)

President Donald Trump gives his inaugural address on Capitol Hill in Washington, Friday, Jan. 20, 2017. (Ricky Carioti/The Washington Post, Pool Photo via AP)

People listen during the inaugural address by President Donald Trump during the Inauguration on Capitol Hill in Washington, Friday, Jan. 20, 2017. (Ricky Carioti/The Washington Photo/Pool Photo via AP)

President-elect Donald Trump waits to stop out onto the portico for his Presidential Inauguration at the U.S. Capitol in Washington, Friday, Jan. 20, 2017. (AP Photo/Patrick Semansky)

Demonstrators try to block people entering in a security checkpoint, Friday, Jan. 20, 2017, during the inauguration of President Donald Trump in Washington. ( AP Photo/Jose Luis Magana)

President Donald Trump waves after taking the oath of office from Chief Justice John Roberts, as his wife Melania holds the Bible, daughter Tiffany, Friday, Jan. 27, 2017 on Capitol Hill in Washington. (Jim Bourg/Pool Photo via AP)

President-elect Donald Trump pauses as he waits to be introduced on the West Front of the U.S. Capitol on Friday, Jan. 20, 2017, in Washington, for his inauguration ceremony as the 45th president of the United States. (Win McNamee/Pool Photo via AP)

President Donald Trump hugs his family after taking the oath of office during the 58th Presidential Inauguration at the U.S. Capitol in Washington, Friday, Jan. 20, 2017. (AP Photo/Susan Walsh)