President Donald Trump posts on social media that Mike Waltz will be nominated to serve as the next U.S. Ambassador to the United Nations.

Rubio is now both secretary of State and national security adviser, like Kissinger. This just shows his shows his pliability, ...

Rep. Elise Stefanik had been Trump's original pick for UN ambassador, but her name was withdrawn over fears about tight ...

The New York Times reports Secretary of State Marco Rubio is now interim national security adviser to President Donald Trump, ...

President Trump announced a major shakeup in his national security team Thursday, tapping Mike Waltz to be his United Nations ...

Latest news and live updates as Trump joins a National Day of Prayer event and delivers the University of Alabama commencement address.

Rubio spoke over the phone with Pakistani Prime Minister Shehbaz Sharif and Indian Foreign Minister Subrahmanyam Jaishankar.

President Trump praised Waltz’s commitment to national interests and reforms at the National Security Council, suggesting his nomination is a promotion.

United States President Donald Trump on May 1 announced that National Security Advisor Mike Waltz will be assuming the new ...

The year is 2019. President Donald Trump has fired his hawkish national security adviser for being an obstruction to ...

By Kaitlan Collins, Alayna Treene, Kevin Liptak, Jeff Zeleny, Kristen Holmes, Zachary Cohen and A(CNN) — President Donald Trump announced Thursday that he would nominate national security adviser Mike ...