Joseph Maguire, the acting director of national intelligence, vowed to resign if he wasn’t allowed to testify to Congress, a source familiar with the matter told NBC News. Maguire, after this segment aired, released a statement saying "“At no time have I considered resigning my position since assuming this role on Aug. 16, 2019. I have never quit anything in my life, and I am not going to start now. I am committed to leading the Intelligence Community to address the diverse and complex threats facing our nation.”