President Obama Hosts Saudi King at the White House

It was King Salman bin Abdul-Aziz's first D.C. visit since becoming king.

Despite those misgivings, a summary of the meeting provided by the White House said clearly that the king told the president he approves of the agreement.

“King Salman expressed his support for the Joint Comprehensive Plan of Action (JCPOA) between Iran and the P5 + 1 countries, which once fully implemented will prevent Iran from obtaining a nuclear weapon and thereby enhance security in the region,” the White House account of the conversation said.

The two also discussed the fight against ISIS, the humanitarian crisis in Yemen, which shares a border with Saudi Arabia, and the Israeli-Palestinian conflict.

In a rare move and show of respect, Obama greeted the Arab leader at his car in front of the West Wing.

The White House has received enough support for the deal in Congress to provide veto-protection for the president.

“We want to work together for world peace," he said through a translator. "Our region must achieve stability, which is essential for the prosperity of its people, and in our country, thank God we are prosperous, but we want prosperity for the entire region. We are willing to cooperate with you in order to achieve that.”

The United States has recently ramped up sales of military equipment to Saudi Arabia, including a $1-billion arms deal the Pentagon in expected to approve soon for munitions and additional support over several years.

Obama last met with the Saudi royals in January, cutting his trip to India short to attend the funeral of Saudi King Abdullah bin Abdul-Aziz, the half-brother of the current king.

ABC News' Luis Martinez and Ali Weinberg contributed to this report.