The South Bend mayor told CNN anyone he appointed to administration posts would be "qualified" for their position.
George Conway, White House adviser Kellyanne Conway's husband, called Donald Trump "inept" and said foreign leaders see him as a "deranged idiot" on Twitter.
Trump has nominated Deputy Secretary of State John Sullivan to fill the position, pending a full Senate vote.
The Fox News host railed against against the former U.S. ambassador to Ukraine in his latest defense of the president.
The president has said that a deal to end his long-running trade war with Beijing is close at hand, but has Trump succeeded in his goal of bringing China to heel?
Deputy Secretary of State John Sullivan's perspective is at odds with that of the president, who has argued his actions towards Ukraine were appropriate.
Michael McFaul said President Donald Trump has "personalized" and "privatized" U.S. foreign policy at great cost to the country.
Rakolta is the first non-career diplomat to become United States ambassador to the United Arab Emirates since the U.S. got diplomatic recognition in 1972.
Darroch came under fire after private emails—in which he delivered scathing assessments of the Trump White House—were leaked.
The president has reacted badly to the leaked emails, in which the British ambassador said the Trump White House is "uniquely dysfunctional."
At the suspect's remand hearing, the judge said he was "an embarrassment to the rest of Israel's citizens."
Majid Takht Ravanchi, Iran's ambassador to the United Nations, warned the U.S. against repeating the mistakes of the Iraq War.
"Any U.S. diplomat who acts like a high commissioner of an occupying power must learn that our tolerance also knows its limits," Wolfgang Kubicki, a deputy speaker of parliament said.
"We've seen time and time again that when Trump and Putin get together, President Putin spins lies and disinformation that President Trump accepts," Michael McFaul said.
Ambassador Lu Shaye rebuked Canada's arrest of Huawei CFO Meng Wanzhou.
Andrei Karlov was shot during a press conference, allegedly by 22-year-old Mevlut Mert Altinas, who screamed, "Don't forget Aleppo! Don't forget Syria!" immediately after the killing.
South Korean reports indicate Jo Song Gil has either attempted to defect or is in hiding.
Haley marks the sixth Trump administration cabinet or cabinet-rank member to depart in the less than two years since Trump took office.
Donald Trump said he will likely name Nikki Haley's successor within the next two or three weeks.
The Barbadian native said she was proud to be awarded the prestigious role
"How could I confirm or deny that?" Russian Ambassador to the U.S. Anatoly Antonov said, after the White House announced "discussions are already underway" to host Putin in Washington.
Michael McFaul got to know how Russia's president thinks. And he's clear on one thing: Thanks to Trump, "the world looks pretty good from Putin's point of view."
Richard Grenell broke with diplomatic norms to say he wants to "empower" conservatives across Europe.