BRETT MCGURK

President Joe Biden’s national security adviser Jake Sullivan is traveling to Saudi Arabia.

Top Biden administration officials and U.S. senators have crisscrossed the Middle East, seeking to assuage growing unease among key Gulf Arab partners over America’s rapprochement with Iran and other policy shifts.

Secretary of State Antony Blinken and other top Biden administration national security aides have met with the chief of Israel's Mossad spy agency for talks that focused primarily on Iran.

However, it is not yet clear what immediate action the new administration will take to secure the release of dozens of Americans held overseas. Detained Americans can complicate U.S. diplomatic negotiations on other issues, and Iran is one country that has been accused of taking Americans hostage to gain leverage. The Biden administration hasn't explained yet how it plans to handle the Americans held in Iran. Brett McGurk, a presidential envoy for the Obama administration, is the official who brokered the swap. "My brother Siamak Namazi is now the longest held dual American-Iranian citizen, being held hostage by Iran since 2015."

The latest on the terror threat at home and abroad, with more on the 2016 race for the White House, with Sen. Dianne Feinstein, D-California, Rep. Michael McCaul, R-Texas, Sen. Rand Paul, R-Kentucky, Special Presidential Envoy Brett McGurk, and others.