The messaging app TeleMessage recently announced that it was suspending its services after being hacked, which caused concern ...

Secretary Rubio’s new role as national security adviser may be unsustainable, according to foreign policy experts.

Defense Secretary Pete Hegseth paused 11 military aid flights bound for Ukraine earlier this year without informing the ...

Roughly a week after Donald Trump started his second term as president, the U.S. military issued an order to three freight ...

Hegseth ordered the abrupt cancellation of weapons flights to Ukraine in February without Trump’s knowledge and blindsiding top national security officials.

It remains an open question whether the Trump administration is equipped to play a helpful role. There is a worrisome ...

"I think it will be a brutal confirmation hearing," Sen. Mark Warner said of Mike Waltz. "I think he's going to have tough ...

The Washington Post reported that Donald Trump soured on Waltz over Waltz's support for an Israeli attack on Iran.

Marco Rubio serving as both Secretary of State and national security adviser could be "ultimately disadvantageous" to President Trump, says former adviser John Bolton.

A clone of the messaging app Signal, which was used by since-ousted national security advisor Mike Waltz, has been hacked.

Rubio, a onetime rival who ran against Trump in the 2016 primaries, has amassed increasing power in the White House after ...