Ms. Gabbard grew up in a secretive offshoot of the Hare Krishna movement and has made a dizzying journey from conservative to liberal darling to Trump ally.

Jan. 26 Sen. Lindsey Graham, R-S.C., told NBC he is inclined to vote in favor of all of Trump’s nominees, but wants to “see how the hearing goes,” specifically citing Gabbard’s controversial visit to Syria and her previous call for National Security Agency leaker Edward Snowden.