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.

Trump's pick to head U.S. intelligence has broken with its assessments several times since the Sept. 11, 2001, terrorist attacks.

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