Julián Castro: Gordon Sondland's Testimony Is "Nail in the Coffin" of Trump's Defense

During Wednesday's impeachment hearing, U.S. Ambassador to the European Union Gordon Sondland told lawmakers that he was ordered by Trump to pressure the Ukrainian government to investigate Joe Biden and his son Hunter. Sondland also acknowledged there was a quid pro quo tying U.S. military aid to investigations, and said that Secretary of State Mike Pompeo and Vice President Mike Pence were aware of the Ukraine pressure campaign. Democratic presidential candidate Juliin Castro joins us to discuss these latest developments in the impeachment inquiry, which he describes as "blockbuster testimony" that could serve as "a nail in the coffin" of Trump's defense. Castro was excluded from the Democratic presidential debate Wednesday because his campaign did not meet polling thresholds recently established by the Democratic National Committee.