If confirmed, former Rep. Tulsi Gabbard would become the youngest-ever DNI. Sources tell ABC News the vote on her nomination is expected to be close.

Tulsi Gabbard, President Trump's nominee to serve as the director of national intelligence, will testify Thursday morning at a confirmation hearing before the Senate Intelligence Committee. The 43-year-old former Democratic congresswoman from Hawaii and combat veteran would oversee the nation's 18 spy agencies.

Watch the Senate Intelligence Committee hearing on President Trump’s nominee for national intelligence Director Tulsi Gabbard

Trump’s nominee for director of intelligence said, under oath, that she was not aware “until today” that a prominent cleric she met in Syria threatened to unleash suicide bombers in the United States.

Tulsi Gabbard faced tough questions Thursday about past comments about Russia, Syria and government leaker Edward Snowden during a Senate confirmation hearing on her nomination to lead the U.S. intelligence service.

Tulsi Gabbard, President Trump's nominee to serve as the director of national intelligence, answered a question about why she repeated "Russian talking points" about the U.S. supporting al-Qaeda, while opposing U.

Analysis: Democrats grandstanded, but it might be the questioning of two Republican hawks that sinks Trump’s pick for Director of National Intelligence, Eric Garcia reports

It’s Gabbard’s comments, however, that have posed the biggest challenge to her confirmation. Gabbard has repeatedly echoed Russian propaganda used to justify the Kremlin’s invasion of Ukraine and criticized Ukrainian President Volodymyr Zelenskyy as a corrupt autocrat.

An enemies list. President Donald Trump' s most controversial Cabinet nominees — Robert F. Kennedy Jr., Tulsi Gabbard and Kash Patel — flooded the zone Thursday in back-to-back-to-back confirmation hearings that were like nothing the Senate has seen in modern memory.

Sen. Mark Warner (D-VA), the Vice-Chair of the Senate Intelligence Committee, broke the news to MSNBC’s Lawrence O’Donnell that he will vote against Donald Trump’s controversial DNI pick Tulsi Gabbard after a contentious confirmation hearing.

Donald Trump's nominee for FBI Director Kash Patel and national intelligence nominee Tulsi Gabbard had their first confirmation hearings, which Robert F. Kennedy Jr. faced more scrutiny.