Julián Castro spoke with NPR on Monday about the House impeachment inquiry and why he says President Trump should be removed from office. Tsering Bista/NPR hide caption

Trump Impeachment Inquiry
Monday
Former New York City Mayor Rudy Giuliani shook hands with supporters as he arrived at President Trump's campaign rally on Aug. 15 in Manchester, N.H. Elise Amendola/AP hide caption
Rudy Giuliani Subpoenaed By House Intel Committee In Impeachment Inquiry
President Trump returns to the White House last week as the Ukraine scandal was growing and with an impeachment inquiry launched by Democrats in the U.S. House. Jim Watson/AFP/Getty Images hide caption
'The Campaign Is The Amplifier': How Trump Plans To Fight Impeachment Push
Saturday
Democrats in Congress say their impeachment inquiry into President Trump will likely take weeks, not months, of work. J. Scott Applewhite/AP hide caption
President Trump and Ukrainian President Volodymyr Zelenskiy speak during a meeting in New York on Wednesday, on the sidelines of the U.N. General Assembly in New York City. Saul Loeb/AFP/Getty Images hide caption
Opinion: The Sitcom President And The Reality Show President
President Trump arrives at Joint Base Andrews in Maryland on Thursday aboard Air Force One. Saul Loeb/AFP/Getty Images hide caption
Friday
Ukrainian President Volodymyr Zelenskiy smiles after meeting United Nations Secretary-General António Guterres during the 74th Session of the General Assembly on Thursday in New York. Timothy A. Clary/AFP/Getty Images hide caption
President Trump's personal lawyer Rudy Giuliani has coffee with Ukrainian-American businessman Lev Parnas at the Trump International Hotel in Washington on Sept. 20. Aram Roston/Reuters hide caption
House Intelligence Committee Chairman Adam Schiff, D-Calif., is leading the impeachment inquiry. J. Scott Applewhite/AP hide caption
The whistleblower complaint says notes from President Trump's call with the Ukrainian president, released this week, were loaded into an electronic system meant for classified information "of an especially sensitive nature." Andrew Caballero-Reynolds/AFP/Getty Images hide caption
Former Officials Say White House's Use Of Secret System Is Unusual, 'Disturbing'
President Trump arrives for a news conference at the United Nations General Assembly on Wednesday. Saul Loeb/AFP/Getty Images hide caption
Thursday
A protester holds up a sign in favor of impeachment outside the U.S. Capitol building on Thursday. Andrew Caballero-Reynolds/AFP/Getty Images hide caption
House intelligence committee Chairman Rep. Adam Schiff, D-Calif., arrives for a news conference on Capitol Hill on Wednesday. His committee has released a whistleblower complaint raising concern about President Trump. Brendan Smialowski/AFP/Getty Images hide caption
President Trump speaks during a meeting at the U.N. General Assembly on Tuesday in New York City. Evan Vucci/AP hide caption
Acting Director of National Intelligence Joseph Maguire testifies before the House intelligence committee on Capitol Hill on Thursday. Andrew Harnik/AP hide caption