Criminal investigations

House Judiciary Committee Chairman Rep. Jerrold Nadler, D-N.Y., joined at left by Democratic counsel Norm Eisen, arrives at a hearing on the constitutional grounds for the impeachment of President Donald Trump, on Capitol Hill in Washington, Wednesday, Dec. 4, 2019. (AP Photo/J. Scott Applewhite)

House Judiciary Committee Chairman Rep. Jerrold Nadler, D-N.Y., center, with members of the committee, speaking during a hearing before the House Judiciary Committee on the constitutional grounds for the impeachment of President Donald Trump, Wednesday, Dec. 4, 2019, on Capitol Hill in Washington. (Drew Angerer/Pool photo via AP)

FILE - In this Aug. 26, 2019, file photo, U.S. Rep. Steve Watkins, R-Kan., makes a point during a town hall meeting, in Topeka, Kan. Authorities plan to investigate whether Watkins broke state laws by listing a UPS Inc. store as his address on a voter registration form and for obtaining a mail-in ballot in a November election. (AP Photo/John Hanna, File)

Russian President Vladimir Putin meets with military officials in the Bocharov Ruchei residence in the Black Sea resort of Moscow, Russia, Tuesday, Dec. 3, 2019. The meeting focused on modernization of the Russian navy. (Mikhail Klimentyev, Sputnik, Kremlin Pool Photo via AP)

Exterior view of the International Criminal Court, or ICC, in The Hague, Netherlands, Wednesday Dec. 4, 2019. Prosecutors are appealing to International Criminal Court judges to authorize a wide-ranging investigation into alleged crimes in Afghanistan's brutal conflict. In April, a panel of judges rejected a request by the court's prosecutor, Fatou Bensouda, to open an investigation into crimes allegedly committed by the Taliban, Afghan security forces and American military and intelligence agencies.(AP Photo/Mike Corder)

FILE - This 1998 frame from video provided by C-SPAN shows George Nader, president and editor of Middle East Insight. Federal prosecutors have charged several people, including a Nader, a Lebanese-American businessman who was a witness in special counsel Robert Mueller’s Russia investigation, with conspiring to conceal excessive campaign contributions during the 2016 presidential election. (C-SPAN via AP, File)

FILE - In this July 25, 2019, file photo, President Donald Trump reviews the troops during a full honors welcoming ceremony for Secretary of Defense Mark Esper at the Pentagon in Washington. If there was one day that crystallized all the forces that led to the impeachment investigation of President Donald Trump, it was July 25. That was the day of his phone call with Ukraine’s new leader, pressing him for a political favor. (AP Photo/Alex Brandon, File)

New Orleans police investigate the scene of a shooting Sunday, Dec. 1, 2019, on the edge of the city's famed French Quarter. (Max Becherer/The Times-Picayune/The New Orleans Advocate via AP)

FILE - In a Monday, Aug. 28, 2017 file photo, a makeshift memorial to Savanna Greywind featuring a painting, flowers, candle and a stuffed animal is seen on Monday, Aug. 28, 2017, in Fargo, N.D., outside the apartment where Greywind lived with her parents. Republican U.S. Sen. Lisa Murkowski from Alaska is taking up the cause for a bill aimed at helping law enforcement with cases of murdered and missing indigenous women. Former North Dakota Democratic Sen. Heidi Heitkamp introduced and helped pass Savanna's Act in the Senate before she lost election, but it was blocked in the House by a retiring Republican. (AP Photo/Dave Kolpack, File)