National security

FILE - In this Oct. 28, 2019, file photo, President Donald Trump shakes hands with Attorney General William Barr before Trump signed an executive order creating a commission to study law enforcement and justice at the International Association of Chiefs of Police Convention in Chicago. Attorney General William Barr took a public swipe Thursday at President Donald Trump, saying that the president’s tweets about Justice Department prosecutors and cases “make it impossible for me to do my job.” Barr made the comment during an interview with ABC News just days after the Justice Department overruled its own prosecutors. they had initially recommended in a court filing that President Donald Trump’s longtime ally and confidant Roger Stone be sentenced to 7 to 9 years in prison. But the next day, the Justice Department took the extraordinary step of lowering the amount of prison time it would seek for Stone. (AP Photo/Charles Rex Arbogast, File)

FILE - In this Aug. 11, 2019, file photo, Hamid Hayat, right, is welcomed by the community after making his first public appearance at a news conference that coincided with Eid al-Adha, also called the "Festival of the Sacrifice," an Islamic holiday, in Sacramento, Calif. Federal prosecutors in California on Friday, Feb. 14, 2020, ended what once was among the nation's highest profile anti-terrorism cases, after a judge earlier overturned Hayat's conviction that grew from conspiracy allegations in the wake of the 2001 terrorist attacks. (Daniel Kim/The Sacramento Bee via AP, File)

FILE - In this Nov. 19, 2019, file photo National Security Council aide Lt. Col. Alexander Vindman is sworn in to testify before the House Intelligence Committee on Capitol Hill in Washington during a public impeachment hearing of President Donald Trump's efforts to tie U.S. aid for Ukraine to investigations of his political opponents. Vindman was escorted out of the White House complex on Friday, Feb. 7, 2020, according to his lawyer. (AP Photo/Andrew Harnik, File)

U.S. Secretary for Defense Mark Esper speaks during a press conference on the first day of the Munich Security Conference in Munich, Germany, Friday, Feb. 14, 2020. (AP Photo/Jens Meyer)b

FILE - In this Oct. 31, 2019, file photo, a man uses his smartphone as he stands near a billboard for Chinese technology firm Huawei at the PT Expo in Beijing. The Justice Department has added new criminal charges against Chinese tech giant Huawei and two of its United States subsidiaries, accusing the company in a plot to steal trade secrets. The indictment from federal prosecutors was announced Thursday by federal prosecutors in Brooklyn. (AP Photo/Mark Schiefelbein, File)

FILE - In this June 27, 2018 file photo, White House Chief of Staff John Kelly, right, leans in to talk with President Donald Trump during Trump's meeting with Portuguese President Marcelo Rebelo de Sousa, in the Oval Office of the White House in Washington. Kelly is defending former White House national security aide, Army Lt. Col. Alexander Vindman, who raised concerns about President Donald Trump’s phone call with Ukraine’s president that spurred his impeachment. Kelly made the comments at a public forum Wednesday evening in Morristown, New Jersey. (AP Photo/Pablo Martinez Monsivais)

FILE - In this March 29, 2018 file photo, President Donald Trump poses for members of the media with then White House Communications Director Hope Hicks on her last day before he boards Marine One on the South Lawn of the White House in Washington. Hicks, one of President Donald Trump's most trusted and longest-serving aides, is returning to the White House. Hicks will be serving as counselor to the president, working with presidential son-in-law and senior adviser Jared Kushner. (AP Photo/Andrew Harnik)

FILE - In this Feb. 25, 2019 file photo, New York Gov. Andrew Cuomo speaks during a bill signing ceremony in New York. Cuomo says his state will file a lawsuit challenging the Trump administration's plan to block New Yorkers from enrolling in "trusted traveler" programs. Federal officials say they took the step because of a new New York law barring immigrant agents from getting access to state motor vehicle records. (AP Photo/Seth Wenig, File)

President Donald Trump listens to a question during a meeting with Ecuadorian President Lenin Moreno in the Oval Office of the White House, Wednesday, Feb. 12, 2020, in Washington. (AP Photo/Evan Vucci)

FILE - In this Jan. 8, 2020, file photo, national security adviser Robert O'Brien, listens as President Donald Trump addresses the nation from the White House in Washington. As the White House presses allies to ban Huawei equipment, O'Brien says the Chinese company has the ability to secretly retrieve sensitive information from that equipment. (AP Photo/Alex Brandon, File)