The sunset provisions include a controversial records program, known as Section 215, that gathers metadata on domestic text messages and phone calls. The Trump administration has urged Congress to reauthorize the program even though the National Security Agency shuttered it, with the White House arguing the authority should be retained in case it’s needed at a later date.

A senior Justice Department official confirmed that Barr will attend the lunch and that the topic is expected to be the surveillance programs.

The meeting will come as Barr found himself in the middle of a days-long scandal starting with the Justice Department's decision to overrule frontline prosecutors and ask for a "far less" sentence for Stone, who was ultimately sentenced this week to 40 months in prison.

Barr said during an interview with ABC News that he had already made a decision to intervene in the original sentence before Trump's statement, adding that the president's tweets on Justice Department business made it "impossible" for him to do his job.

The comments, and broader handling of the Stone case, have earned Barr criticism from Democrats, who argue the decision to ask for a lesser sentence hints at political favoritism, and some Republicans, who are critical of Barr's remarks toward Trump.