Trump replaced Obama's portrait with one of himself surviving an assassination attempt in Pennsylvania, while Obama's portrait was relocated.
Kaploun, born in Israel to a haredi family, aided then-President-elect Trump as his Jewish outreach chief on Trump's vision for US-Israel relations after the 2024 election victory.
Global players want Trump to make a deal with Iran, but he must resist their efforts and push for real outcomes.
Trump's announcement came less than 24 hours after steep new tariffs kicked in on imports from dozens of trading partners.
An evangelical Christian, Huckabee has been a vocal Israel supporter and has defended Jewish settlements in the West Bank.
Had Obama or former president Joe Biden announced direct talks with Iran, Netanyahu and his allies would have slammed the move.
Trump added that he was confused as to “why Israel ever gave (Gaza) up," adding that it was "a great location that nobody wants to live in.”
The two discussed Iran, the hostages, Gaza, and tariffs. Trump said direct talks with Iran will begin on Saturday.
Netanyahu meets Trump at the White House for the second time in two months, displaying a shift from cold relations with Biden to an open door policy with the current administration.
"No, I'm not joking. I’m not joking," Trump said on running for a third time • US president says he is 'pissed off' at Russia's Vladimir Putin