Trump told Fox News that Washington behaves in a similar way.

"You don't think we do that to them? We do, we do a lot of things," he said on the "Sunday Morning Futures with Maria Bartiromo" show.

"That's the way the world works. It's a nasty world."

Trump was responding to a question about how he viewed Chinese intellectual property theft, hacking of the US telecoms system and controversy around the Covid-19 pandemic.

He likewise dismissed concerns over a case in which two Chinese nationals were accused last month of smuggling in a toxic fungus.

Yunqing Jian, 33, and Zunyong Liu, 34, are charged with conspiracy, smuggling, false statements, and visa fraud.

The US Justice Department said the pair conspired to smuggle into the United States a fungus called Fusarium graminearum that causes "head blight," a disease of wheat, barley, maize, and rice.

Trump downplayed this saying, "you don't know where that came from, though. I mean, did that come from the country, or is that three wackos that happened to carry something?"

Referring to the ongoing US-China trade war, Trump appeared to signal he was satisfied, saying "We're getting along well with China."

He added: "I think getting along with China is a very good thing, but they are paying substantial tariffs."

This past week the White House signaled trade progress with China, with an official saying both sides have reached an understanding on issues including expediting rare earth shipments to the United States.

After talks in Geneva in May, Washington and Beijing agreed to temporarily lower steep tit-for-tat tariffs on each other's products.