Former Vice President Joe Biden slammed President Trump on a range of issues and suggested that he has behaved in a way that's "dangerous."

"We have a president who does not understand governance, forgets his policies -- he doesn't understand how the government functions," he said at an event with Ohio Governor John Kasich at the University of Delaware

He added, "This breaking down of international and national norms is the glue that holds the entire world order together and holds together our system, that is what is being attacked now and that what's most dangerous."

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Biden said that the president's conduct was "absolutely bizarre," particularly his nicknames for North Korean dictator Kim Jong Un.

"You don't say to a foreign leader even as difficult and dangerous and against U.S. interests as the President of North Korea, you don't refer to him as a little guy," said Biden.

He noted however, that while the president "generates chaos internally," there are several on the staff he'd like to see stay.

"I don't want the chief of staff to quit, I don't want to see the secretary of Defense or State quit," urged Biden, adding "all the people in our administration who are still there, they call me all the the time, I say, 'Please stay, there has to be some competence and normalcy.'"

Biden's charges against Mr. Trump are the most recent since he penned a blistering op-ed in late August that was deeply critical of the president in the wake of his comments on the violent clashes in Charlottesville Virginia.

Biden also accused Mr. Trump of emboldening white supremacists "with messages of comfort and support" by not explicitly denouncing racist protesters in the aftermath of the events.

But when asked if the current culture of politics could be reversed, both Biden and Kasich agreed.

"It's going to sound trite, but leadership matters," said Biden. He added that it's now critical to remind Americans that "we are uniquely a product of our political institutions. "

Kasich meanwhile, said Americans have "got to be a little better about being heroes every day to someone else."

"Be patient, embrace people, tell them you care about them, give em' a hug, you'll feel 10 times better," he suggested.

Both have been floated as possible contenders for a 2020 presidential bid. Kasich recently sidestepped the question on NBC's "Meet the Press", saying "I don't know what I'm going to do tomorrow."

He added, "You know, I will tell you this. The other day, with all the chaos going on, my wife said to me one morning, she said, 'You know, John, I wish you were president.' That's how I knew the country was in trouble."