Witkoff said the White House is trying to be transparent with negotiators and pushed back on the characterization of Trump calling for the clearing out of Gaza, saying Trump views it as humanitarian.
He added in an interview with CBS's "Face the Nation," "Hamas will never govern Gaza. That is completely unacceptable."
The first meeting between Sullivan and his intended successor, who will inherit a long series of crises around the world.
In a post on X, Arkansas Republican Sen. Tom Cotton decried the ICC as a "kangaroo court" and called Karim Khan a "deranged fanatic."
Waltz has criticized Chinese activity in the Asia-Pacific and has voiced the need for the United States to be ready for a potential conflict in the region.