Behind the news

An aide to Facebook CEO Mark Zuckerberg closes a binder of notes left on the table as Zuckerberg takes a short break from testifying before a joint hearing of the Commerce and Judiciary Committees on Capitol Hill in Washington, Tuesday, April 10, 2018, about the use of Facebook data to target American voters in the 2016 election. (AP Photo/Andrew Harnik)

Demonstrators hold signs during a "March for Our Lives" rally in support of gun control, Saturday, March 24, 2018, in Chicago. Students and activists across the country planned events Saturday in conjunction with a Washington march spearheaded by teens from Marjory Stoneman Douglas High School in Parkland, Fla. (AP Photo/Nam Y. Huh)

President Donald Trump holds notes during a listening session with high school students and teachers in the State Dining Room of the White House in Washington, Wednesday, Feb. 21, 2018. Trump heard the stories of students and parents affected by school shootings, following last week's deadly shooting in Florida. (AP Photo/Carolyn Kaster)

FILE- In this Jan. 9, 2018, file photo, President Donald Trump listens during a meeting with lawmakers on immigration policy in the Cabinet Room of the White House in Washington. Trump used profane language Thursday, Jan. 11, as he questioned why the U.S. should permit immigrants from certain countries, according to three people briefed on the conversation. The White House did not deny the comment. (AP Photo/Evan Vucci, File)