The White House has affirmed that Saudi Arabia and Iran-allied Houthis in Yemen are making progress toward finding a permanent end to their conflict. National Security Adviser Jake Sullivan spoke by phone with Saudi Arabian Crown Prince Mohammed bin Salman. Biden's special envoy for Yemen, Tim Lenderking, is also being dispatched to the Saudi capital Riyadh this week for follow-up talks with Saudi officials, while CIA Director William Burns traveled to Saudi Arabia last week to meet with intelligence officials.