Trump was lying, Saudi Arabia has called out Trump’s lie:
“Asked if the Saudis demand the establishment of a Palestinian state, Trump, sitting alongside Netanyahu in the Oval Office, replied: “No, they’re not.”
“The Ministry of Foreign Affairs affirms that the Kingdom of Saudi Arabia’s position on the establishment of a Palestinian state is firm and unwavering,” the Saudi Foreign Ministry said in a statement.”
https://www.middleeastmonitor.com/20250205-saudi-denies-trumps-claim-says-no-ties-with-israel-without-palestinian-state/