New Delhi, May 2 -- President Donald Trump said Thursday that he is nominating Mike Waltz as United Nations ambassador while Secretary of State Marco Rubio would take over Waltz's duties on an interim role.

He posted on his Truth Social account, "I am pleased to announce that I will be nominating Mike Waltz to be the next United States Ambassador to the United Nations. From his time in uniform on the battlefield, in Congress and, as my National Security Advisor, Mike Waltz has worked hard to put our Nation's Interests first."

"I know he will do the same in his new role. In the interim, Secretary of State Marco Rubio will serve as National Security Advisor, while continuing his strong leadership at the State Department. Together, we will...