Speaking from Japan, where she is accompanying the president, Sanders defended Trump for evoking North Korea's criticisms of the Democratic presidential hopeful.
And she accused the Obama administration of creating “messes” in places like North Korea that Trump has had to clean up.
“I think they agree in their assessment of former Vice President Joe Biden,” she said of Trump and Kim.
“The president doesn't need somebody else to give him an assessment of Joe Biden. He's given his own assessment a number of times. I think you've seen it. I'm sure you've covered it on your program. The president watched him and his administration with President Obama fail for eight years.”
She said Trump has "cleaned up a lot of the messes that were left behind. We shouldn't even be in the position that we're in to have to deal with North Korea at the level we are if they had done their job in the first place."
"They failed with Iran, they failed with North Korea, they failed on trade," she said, "And we finally have a president that's being tough with these countries. We've put tougher sanctions on North Korea than the Obama administration ever did. But at the same time the president wants to develop that relationship."