TRENTON, N.J. (AP) — One of Gov. Chris Christie’s top aides is scheduled to answer questions this week from lawmakers who are investigating traffic jams last year near the George Washington Bridge even as Christie tries to put any hint of scandal behind him.

Regina Egea is to appear Thursday before the joint legislative task force. Lawmakers are expected to grill her on what she knew and when about the traffic jams and the relationship between the governor’s office and the Port Authority of New York and New Jersey, which runs the bridge.