Israel-Gaza updates: Israel strikes 'deep inside' Lebanon after deadly attack

President Joe Biden will discuss the latest efforts to secure a cease-fire in Gaza and release of the remaining hostages during his meeting with Prime Minister Benjamin Netanyahu at the White House on Thursday, according to a senior administration official.

"We believe a deal is closable and it's time to move to close that," the official told reporters on a call Wednesday, adding that it's "in the closing stages."

The official said the issues that remain are "resolvable" and are not "unreachable problems," such as implementation and the exchange of Palestinian prisoners for hostages.

There will be "more activity over the coming week" in terms of the president’s team to try and get this over the finish line, the official said.

This marks the first time Biden and Netanyahu will meet in person since the president's surprise visit to Israel shortly after the Oct. 7 attack.

The two will also discuss developments throughout the Middle East, including threats from Iran and Iranian proxy groups, and the humanitarian crisis in Gaza, the official said.

In addition to the meeting, Biden and Netanyahu will meet together with the families of American hostages, the official said.

Vice President Kamala Harris will also have a separate meeting with Netanyahu, the official said.

-ABC News' Molly Nagle and Justin Gomez

At least 129 Palestinians have been killed and 416 others have been injured in and around Khan Younis since the beginning of the Israeli operation there earlier this week, the Hamas-run Gaza Ministry of Health said Wednesday.

The Israel Defense Forces acknowledged the operation in Khan Younis was ongoing in another release Wednesday.

-ABC News' Diaa Ostaz and Jordana Miller

Five people have been removed and arrested from the House of Representatives gallery for disrupting Israeli Prime Minister Benjamin Netanyahu's address to Congress, according to U.S. Capitol Police

Capitol Police also said they deployed pepper spray toward part of a crowd of protesters that they alleged became "violent."

"The crowd failed to obey our order to move back from our police line. We are deploying pepper spray towards anyone trying to break the law and cross that line," Capitol Police said in tweet on X.

As Prime Minister Benjamin Netanyahu entered the chamber, Senate Majority Leader Chuck Schumer did not shake his hand.

Notably, a group of Senate Democrats sitting in the front row middle section of the chamber, including Schumer and Sen. Mark Kelly, stood but did not clap as Netanyahu entered the chamber -- and many of them are not clapping at the applause lines that the majority of the chamber is clapping for.

In the earliest stages of his remarks, the group is seeming to be very strategic about which sentiments they do clap for.

Though they didn't clap at Netanyahu's entrance, they did all rise and stand to clap when Schumer said, "America and Israel must stand together."

The group that appears to be being selective with their clapping includes Sens. Gary Peters, Kirsten Gillibrand, Kelly, Maggie Hassan, Cory Booker, Alex Padilla, Schumer, Debbie Stabenow, Richard Blumenthal and Amy Klobuchar.