Former Biden White House national security adviser Jake Sullivan said the meeting between President Donald Trump and ...

The national security adviser seemed at a loss. It fell to Michael Waltz to explain to handpicked members of his staff this ...

Donald Trump's use of non-secure Signal messaging app when discussing an attack on Yemen was a major breach of security ...

Former national security adviser Jake Sullivan slammed President Trump in a new interview, calling the first 100 days of his ...

The U.S. Commerce Department said on Wednesday it is opening a probe into national security impacts of imports of medium-duty ...

At least 20 people have been fired from the White House National Security Council in recent weeks, a broader exodus than ...

The California Democrat’s request came the day after it was revealed that Defense Secretary Pete Hegseth discussed sensitive ...

Three former service members-turned Democratic House lawmakers are demanding answers from Defense Secretary Pete Hegseth ...

The opening 100 days of President Donald Trump's second term have turned out to be the most consequential and sweeping start ...

America’s adversaries have more room to operate, at least in the disinformation space, cybersecurity experts say.

A federal judge temporarily blocked President Trump’s administration from nixing bargaining rights for thousands of federal ...

House Republicans are carving out $68.8 billion for President Donald Trump’s border wall and to hire more agents in the field ...