National security

In this photo provided by the U.S. Air Force, soldiers from the the 89th Military Police Brigade, and 41st Engineering Company, 19th Engineering Battalion, Fort Riley, Kan., arrive at Valley International Airport, Thursday, Nov. 1, 2018, in Harlingen, Texas, to conduct the first missions along the southern border in support of Operation Faithful Patriot. The soldiers will provide a range of support including planning assistance, engineering support, equipment and resources to assist the Department of Homeland Security along the Southwest border. (Alexandra Minor/U.S. Air Force via AP)

In this photo provided by the U.S. Air Force, soldiers from the the 89th Military Police Brigade, and 41st Engineering Company, 19th Engineering Battalion, Fort Riley, Kan., arrive at Valley International Airport, Thursday, Nov. 1, 2018, in Harlingen, Texas, to conduct the first missions along the southern border in support of Operation Faithful Patriot. The soldiers will provide a range of support including planning assistance, engineering support, equipment and resources to assist the Department of Homeland Security along the Southwest border. (Alexandra Minor/U.S. Air Force via AP)

FILE - In this July 2, 2018 file photo, members of the U.S. Coast Guard Academy Class of 2022 pose for their class photo on day one of Swab Summer at the academy in New London, Conn. An official said Thursday, Nov. 1, 2018 that the inspector general for the Department of Homeland Security is investigating allegations of racial discrimination and inadequate follow-up by the school’s leadership.. (Sean D. Elliot/The Day via AP, File)

President Donald Trump waves upon arrival at the White House in Washington, Wednesday, Oct. 31, 2018, from a campaign rally in Fort Myers, Fla. (AP Photo/Manuel Balce Ceneta)

This screenshot from CNN's Twitter account shows what CNN says is the explosive device that was delivered to their New York headquarters on Wednesday, Oct. 24, 2018. The package sent to CNN contained a live explosive with wires, a black pipe and an envelope with white powder. Officials said the substance was being tested to see if it was dangerous. (CNN Twitter Account via AP)

U.S. National security adviser John Bolton adjusts his glasses while speaking to the media after his talks with Azerbaijan's President Ilham Aliyev in Baku, Azerbaijan, Wednesday, Oct. 24, 2018. Bolton said that Washington hasn't yet made up its mind on further sanctions against Russia over the poisoning of an ex-Russian spy in Britain. (AP Photo/Aida Sultanova)

FILE - In this June 22, 2018 file photo, President Donald Trump listens during an event on immigration alongside family members affected by crime committed by undocumented immigrants, at the South Court Auditorium on the White House complex in Washington. Federal immigration and health officials were blindsided by President Donald Trump’s “zero tolerance” policy on migrants crossing the southwest border, triggering a cascade of problems as agencies struggled with the fallout from family separations, congressional investigators said in a critical report issued Wednesday. (AP Photo/Evan Vucci)

U.S. National security adviser John Bolton speaks to the media during a news conference in Moscow, Russia, Tuesday, Oct. 23, 2018. (AP Photo/Alexander Zemlianichenko)

Russian President Vladimir Putin, left, and U.S. National security adviser John Bolton during their meeting in the Kremlin in Moscow, Russia, Tuesday, Oct. 23, 2018. (AP Photo/Alexander Zemlianichenko)