The U.S. Department of Justice is seen in June 2023. A former FBI informant has been indicted for allegedly lying to the FBI. His claims about President Biden were shared by Republicans pushing for an impeachment inquiry into the president. Kevin Dietsch/Getty Images hide caption
House Oversight Committee Chairman James Comer, R-Ky., plans to hold the first hearing on the impeachment into President Biden next week. Anna Moneymaker/Getty Images hide caption
The National Museum of American History has some impeachment buttons from the Nixon years in their collection. The Washington Post/The Washington Post via Getty Images hide caption
Speaker of the House Kevin McCarthy, R-Calif., speaks outside his Capitol office on Tuesday. J. Scott Applewhite/AP hide caption
House Speaker Kevin McCarthy, R-Calif., is working to convince members of his own party to support a stop-gap spending bill while also defending his job as speaker. Anna Moneymaker/Getty Images hide caption
House Speaker Kevin McCarthy told reporters that allegations regarding President Biden's family rise to the level of an impeachment inquiry. Graeme Sloan/Sipa USA via Reuters hide caption
National Security Council Europe expert Lt. Col. Alexander Vindman (left) appears before the House Intelligence Committee during an impeachment hearing in November. Matt McClain/The Washington Post via Getty Images hide caption
Army Lt. Col. Alexander Vindman, a military officer at the National Security Council who testified during the impeachment hearings on Capitol Hill, is seen at the White House complex in January. Susan Walsh/AP hide caption
Former U.S. Ambassador to Ukraine Marie Yovanovitch testifies before the House Intelligence Committee on Capitol Hill in Washington in November. Andrew Harnik/AP hide caption
A federal judge said a lawsuit filed by former deputy national security adviser Charles Kupperman is moot. The decision on Monday comes as the House of Representatives had said it will not hold Kupperman in contempt. J. Scott Applewhite/AP hide caption
House Speaker Nancy Pelosi, seen departing a press conference following the House vote Wednesday, said she was ready to send the articles of impeachment once she has more information about the contours of a Senate trial. Win McNamee/Getty Images hide caption
Soldiers storm a building during a drill held as part of the Exercise Rapid Trident 2019, an annual multinational training exercise near Yavoriv, Ukraine. Yulii Zozulia/Barcroft Media via Getty Images hide caption
Senate Majority Leader Mitch McConnell, R-Ky., leaves the chamber after criticizing the House Democrats' effort to impeach President Trump. J. Scott Applewhite/AP hide caption
The impeachment proceedings against President Trump have featured testimony by U.S. Ambassador to the European Union Gordon Sondland on a key cellphone conversation with Trump regarding Ukraine. Sondland is seen here being sworn in last month. Susan Walsh/AP hide caption
Attorney Charles Cooper, representing former national security aide Charles Kupperman (center) departs federal court in Washington in October. On Tuesday, Cooper asked a federal court to keep alive a lawsuit centered on a now-withdrawn subpoena filed by House Democrats that sought Kupperman's testimony as part of the impeachment inquiry. Bloomberg via Getty Images hide caption
President Clinton in the Rose Garden of the White House on Dec. 11, 1998, before delivering a statement on the impeachment inquiry. J. Scott Applewhite/AP hide caption
Rep. Devin Nunes, R-Calif., stands in an elevator after departing a secure area of the Capitol on Dec. 3. His appearance in call logs in the Democrats' impeachment report is raising new questions about his role in the Ukraine pressure campaign at the heart of the impeachment inquiry. Patrick Semansky/AP hide caption
House Intelligence Committee Chairman Adam Schiff, D-Calif., heads to a news conference on Tuesday. Mhari Shaw/NPR hide caption
House Judiciary Committee Chairman Jerry Nadler, D-N.Y., leaves at the conclusion of a House Democratic Caucus meeting on Capitol Hill in October. Manuel Balce Ceneta/AP hide caption
Philip Reeker, acting assistant secretary of state for Europe, arrives Oct. 26 for a closed-door interview at the Capitol in Washington, D.C. Jose Luis Magana/AP hide caption
Secretary of State Mike Pompeo says "many countries" are working to undermine American democracy. He adds: "To protect our elections, America should leave no stone unturned." Alex Brandon/AP hide caption
President Donald Trump walks to the Oval Office of the White House on Nov. 25. Patrick Semansky/AP hide caption
New documents show Secretary of State State Mike Pompeo had contact with President Trump's personal lawyer Rudy Giuliani weeks before the U.S. Ambassador to Ukraine was recalled. Markus Schreiber/AP hide caption
David Holmes, a career diplomat and the political counselor at the U.S. Embassy in Kyiv, Ukraine, is scheduled to give public testimony as part of the impeachment inquiry into President Trump on Thursday. Jose Luis Magana/AP hide caption