FOX News correspondent Aishah Hasnie reports on former Biden chief of staff Ron Klain's testimony in a closed-door House subcommittee hearing on President Joe Biden's cognitive decline. BRET BAIER, ...

(CNN) — Former President Joe Biden’s chief of staff, Ron Klain, told staffers on the House Oversight Committee that former National Security Adviser Jake Sullivan and former Secretary of State Hillary ...

WASHINGTON -- US national security adviser Jake Sullivan on Sunday vowed there would be "real costs" for China if the country went forward with providing lethal aid to Russia in its war on Ukraine, ...

NPR's Scott Detrow talks with Jake Sullivan, national security adviser to former President Biden, about President Trump's plan for peace in Gaza.

A ceasefire is now in effect between Israel and Hamas, and the Israeli military has pulled back from certain positions in the Gaza Strip. In the... Jake Sullivan tried to get a Gaza peace deal. Here's ...