He made the remarks during a speech in Georgia on Wednesday.
President Donald Trump announced "major combat operations" against Iran on Feb. 28, with massive joint U.S.-Israeli strikes targeting military, government and infrastructure sites.
Delegations from the U.S. and Iran entered negotiations in June aimed at a war-ending deal based on a memorandum of understanding signed by both countries.
The U.S. and Iran have nonetheless continued to exchange strikes, with the strategic Strait of Hormuz the primary flashpoint.
President Donald Trump claimed during a speech in Georgia on Wednesday that Iran wasn't "ready" to make a deal to end the war because anytime the Iranians settle on an agreement, they "change" it.
"They want to make a deal. But I say they're not ready to make a deal," Trump said. “Because every time they make a deal, they want to change it and everything. They're not ready. They'll be ready very soon."
By a narrow vote of 216-214, the House adopted a sweeping budget resolution for a $95 billion package to provide funding for defense and intelligence, farm aid and components of the elections overhaul effort -- the SAVE America Act.
GOP Reps. Thomas Massie (Ky.) and Warren Davidson (Ohio) voted against the measure with all Democrats. California Rep. Kevin Kiley, an independent who conferences with Republicans, also voted no.
The GOP-led resolution, which directs four committees to draft pieces of legislation that ultimately would be wrapped into one bill, now heads to the Senate.
Senate Majority Leader John Thune has indicated he does not plan to hold a vote on the resolution any time soon.
The blueprint allows for up to $60 billion for military funding and as much as $13 billion for intelligence costs -- totaling $73 billion to cover the military conflict with Iran as the Pentagon warns it's running out of money to conduct operations there.
-ABC News' Lauren Peller and John Parkinson
The UK's Foreign office announced on Wednesday that "due to the security situation," embassy staff have been temporarily withdrawn from Iran.
The embassy will continue to operate remotely, according to the Foreign, Commonwealth and Development Office.
Iranian parliament speaker Mohammad Bagher Ghalibaf said in a post on X that if Iran cannot sell its oil, no one else can sell oil either.
"If our security is not ensured, no infrastructure will be safe, and the security of the strait is in the absence of American forces," he added.
