President Trump's son-in-law and adviser Jared Kushner is expected to meet with staff from the Senate Intelligence committee in coming days, according to a senator on the panel.
Mr Kushner is likely to be asked about his meetings with the Russian ambassador to the United States.
Sen Angus King, who is a member of the committee, says Mr Kushner will have a face-to-face meeting with panel staff as early as next week.
A spokeswoman for Sen King on Friday confirmed the senator's comments in an earlier interview on CNN.
A Trump administration official says no meeting had been formally scheduled and discussions about possible dates were ongoing.
Congressional staffers say the committee would reserve the opportunity to ask Mr Kushner for documents or to answer further questions at a later date.