Trump hits Obama, Biden over 'mess' with China and North Korea

President TrumpDonald Trump Democrats defeat GOP effort to declare 'lost confidence' in Biden after Afghanistan withdrawal Prosecutors say Jan. 6 rioters committed roughly 1,000 assaults on federal officers Texas emerges as new battleground in abortion fight MORE on Friday said his administration's efforts to resolve a trade dispute with China and seek nuclear disarmament with North Korea amounted to cleaning up a "mess" created by the Obama administration.

"If you look at what we've straightened out, I call it the Obama-Biden mess," Trump told reporters outside the White House. "We're straightening it out, whether it's North Korea ... you were going to end up in a war with North Korea, and now the relationship is a good relationship."

"You look at what Joe BidenJoe Biden House panel advances 8B defense bill Democrats defeat GOP effort to declare 'lost confidence' in Biden after Afghanistan withdrawal House committee moves to block private funds for National Guard deployments MORE has done with China ... we lost our shirts with China [under the Obama administration], and now China is dying to make a deal," he added.

The Trump administration's trade negotiations with China erupted last month, resulting in new tariff action on billions of dollars' worth of Chinese and American goods.

Chinese officials recently said that no further deals to resolve longstanding trade issues between the two countries will be considered until the Trump administration removes all tariffs on Chinese goods. U.S. officials, meanwhile, have warned that some tariffs would need to remain in place as an enforcement measure in the event of a potential deal.

Trump's efforts to negotiate with North Korean leader Kim Jong Un

Kim Jong Un Creating American hostages, abandoning Afghan allies Biden envoy calls on North Korea to restart nuclear talks Biden should pressure Kim Jong Un — and help the North Korean people MORE took an optimistic turn a few days ago when Trump became the first sitting U.S. president to set foot on North Korean soil at the Demilitarized Zone, where he met with Kim.

The two countries are reportedly in the process of planning a third summit between the two leaders after a meeting earlier this year ended without significant progress.

Trump's remarks Friday came in response to comments Biden made to CNN's Chris Cuomo

Chris Cuomo American describes being left behind in Kabul: 'I don't believe in anybody anymore' Chris Cuomo's revisionist history Chris Cuomo addresses brother Andrew Cuomo: 'I tried to do the right thing' MORE in a recent interview, where Biden likened Trump to a schoolyard bully.

"He's the bully that I knew my whole life. He's the bully that I've always stood up to. He's the bully that used to make fun when I was a kid [with a] stutter, and I'd smack him in the mouth," Biden said.

Biden, who is the front-runner for the Democratic Party's 2020 presidential nomination, announced his third White House bid earlier this year and now leads the field of Democratic candidates in most polls, though his lead in various surveys has slipped in recent weeks.

Updated at 12:41 p.m.