Allison Center for National Security Director Robert Greenway tells 'Life, Liberty & Levin' the global consequences of Iran ...

President Donald Trump’s removal of national security adviser Mike Waltz brings further disruption to his national security ...

Ukraine wants to host a meeting of national security advisers from the US, UK, France and Germany at a yet-to-be-determined ...

Two experts said differences in philosophy within the Trump administration might have played just as important of a role for ...

Secretary of State Marco Rubio has been thrown into two top national security roles at once after President Donald Trump ...

President Donald Trump says he is nominating national security adviser Mike Waltz as United Nations ambassador while ...

President Donald Trump's National Security Advisor Mike Waltz and other staffers are out at the National Security Council, ...

Trump said he's nominating Michael Waltz to be ambassador to the United Nations, while Secretary of State Marco Rubio will ...

National security adviser Mike Waltz is leaving his White House post, although soon after reports about his departure were ...

Marco Rubio will be the first person since Henry Kissinger in the 1970s to hold the positions of secretary of state and ...

The newly appointed interim national security adviser is preparing to stay in that role for up to six months, a person close ...

Also, scientists are investigating metformin’s anti-aging abilities. Here’s the latest at the end of Thursday.