Checking FBI files is a norm for all Cabinet nominees but for Tulsi Gabbard, the senators want to look if some previously unknown information, including possible foreign contacts, come out. As of now,

Some Republican senators are privately eager to see the FBI file on Tulsi Gabbard, whose history of alignment with Russia has drawn concern in the wake of her nomination for the post of director of national intelligence,

Sen. Tammy Duckworth, a veteran of combat missions in Iraq, said she had concerns about Trump's choice to be national intelligence director.

Trump’s pick for director of national intelligence will be questioned over her 2017 meeting with Syrian dictator Bashar al-Assad

Gabbard is among several controversial Trump cabinet nominees who Republicans have expressed reservations about.