The White House ignored suggestions that the talks could escalate tensions with Netanyahu, saying Gantz had requested the meeting while passing through Washington.
US National Security Council spokesman John Kirby told reporters on Monday that Israel had also presented a “forward-looking” proposal for a ceasefire that it is now up to Hamas to accept.
The ceasefire would be a huge domestic win for Biden to be able to trumpet during his State of the Union speech on Thursday.
On Sunday, Harris, 59, called for an immediate ceasefire and, using unusually strong language, said Israel had “no excuse” for not providing more aid.
The next day he denied any rift between himself and Biden, 81, as his comments went further than the president's earlier criticism of Israel.
“The President and I have been united and consistent from the beginning,” Harris told reporters.