A portion of a once-classified CIA report that disclosed the existence of a drug research program dubbed "Project Medication" is photographed in Washington, Tuesday, Nov. 13, 2018. Shortly after 9/11, the CIA considered using a drug that might work like a truth serum and force terror suspects to give up information about potential attacks. After months of research, the agency decided that a drug called Versed, a sedative often prescribed to reduce anxiety, was “possibly worth a try.” But in the end, the CIA decided not to ask government lawyers to approve its use. The American Civil Liberties Union fought in court to have the report released. (AP Photo/Jon Elswick

FILE - In this Nov. 3, 2008, file photo, Republican presidential candidate Sen. John McCain, R-Ariz., speaks at a rally in Tampa, Fla. Aide says senator, war hero and GOP presidential candidate McCain died Saturday, Aug. 25, 2018. He was 81. (AP Photo/Carolyn Kaster, File)

FILE - In this May 9, 2018, file photo, Gina Haspel arrives to her confirmation hearing at the Senate Intelligence Committee on Capitol Hill in Washington. Haspel’s 33-year spy career began as the Cold War was thawing, but she was in the shadows countering Russian intelligence agencies that never stopped trying to penetrate the U.S. government. It's experience she can tap as she leads the agency amid rising tensions with Moscow. (AP Photo/Alex Brandon, File)

File-This May 15, 2018, file photo shows ranking Member Sen. Claire McCaskill, D-Mo., asking a question about separation of children from their parents at the border, of Homeland Security Secretary Kirstjen Nielsen testifies to the Senate Homeland Security Committee on Capitol Hill in Washington. McCaskill says that classified discussions she can’t share publicly persuaded her to vote against the new CIA director. McCaskill is one of the few Democrats facing difficult re-elections to oppose President Donald Trump’s nomination of Gina Haspel. She was confirmed Thursday, may 17, 2018, after a debate about her role in the CIA’s torture program. (AP Photo/Jacquelyn Martin, File)

FILE - In this May 9, 2018, file photo, CIA nominee Gina Haspel testifies during a confirmation hearing of the Senate Intelligence Committee on Capitol Hill in Washington. The political schism in the Democratic Party is playing out in the vote for Haspel, as support from red-state senators facing re-election is bumping up against a more liberal flank eyeing potential 2020 presidential bids who reject of the nominee over the agency’s clouded history of torture. (AP Photo/Alex Brandon, File)

FILE - In this May 9, 2018, file photo, CIA nominee Gina Haspel testifies during a confirmation hearing of the Senate Intelligence Committee on Capitol Hill in Washington. The political schism in the Democratic Party is playing out in the vote for Haspel, as support from red-state senators facing re-election is bumping up against a more liberal flank eyeing potential 2020 presidential bids who reject of the nominee over the agency’s clouded history of torture. (AP Photo/Alex Brandon, File)

In this May 9, 2018 photo, CIA nominee Gina Haspel testifies during a confirmation hearing of the Senate Intelligence Committee, on Capitol Hill in Washington. In a letter Tuesday to the top Democrat on the Senate Intelligence Committee, Haspel says she would “refuse to undertake any proposed activity that is contrary to my moral and ethical values.” (AP Photo/Pablo Martinez Monsivais)

Senate Intelligence Committee Vice Chairman Mark Warner, D-Va., goes behind closed doors as members of the Senate Intelligence Committee arrive to vote on Gina Haspel, President Donald Trump's pick to lead the Central Intelligence Agency, on Capitol Hill in Washington, Wednesday, May 16, 2018. In announcing his support for the nominee, Warner said Haspel has been "professional and forthright" with the intelligence committee, "Most importantly, I believe she is someone who can and will stand up to the president if ordered to do something illegal or immoral - like a return to torture." (AP Photo/J. Scott Applewhite)

In this May 9, 2018 photo, CIA nominee Gina Haspel testifies during a confirmation hearing of the Senate Intelligence Committee, on Capitol Hill in Washington. In a letter Tuesday to the top Democrat on the Senate Intelligence Committee, Haspel says she would “refuse to undertake any proposed activity that is contrary to my moral and ethical values.” (AP Photo/Pablo Martinez Monsivais)