"Everybody wants to talk about, 'Donald Trump is escalating things.' He isn't. North Korea is," the press secretary pushed back against critics.
She also said that "Rocket Man," the president's new nickname for North Korean dictator Kim Jong Un, is a "President Trump original," adding that he is a "master at branding."
The press secretary was optimistic about holding Iran in check despite the Iranian deal the president has called an "embarrassment."
"I don't think as long as Donald Trump is president Iran is gong to be doing a lot of high-fiving," Sanders quipped.
Issues surrounding Iran and North Korea took center stage as President Trump spoke at the United Nations in New York City yesterday.
Sanders said President Trump's approach to the United Nations was more in line with what Americans compared to former President Obama's tactics.
"I don't think the previous administration was always putting America first," she explained, charging former President Obama with "apologizing for our success."
"That's not some thing America wants. That's not what our country was founded on."
Watch the full interview above.