US officials did not immediately respond to requests for comment on Trump's remark.
He said Beijing doesn't want him or the Republicans "to win" because he is "the first president ever to challenge China on trade".
Beijing's retaliatory tariffs on $60bn worth of United States goods were due to go into effect soon after the USA sanction. "That's because we are beating them on Trade, opening markets, and the farmers will make a fortune when this is over!"
Trump did not mention election interference by Russian Federation, who has been flagged by US intelligence agencies for interfering in the 2016 presidential election. The two nations have exchanged several rounds of tariffs.
President Trump on Wednesday accused the Chinese government of actively trying to interfere in the midterm elections. One week ago, he said in a tweet, "China has openly stated that they are actively trying to impact and change our election by attacking our farmers, ranchers and industrial workers due to their loyalty to me".
Trampling on the Palestinians and pushing unilateral initiatives will not resolve the Israeli-Palestinian conflict, Macron said taking a swipe at his US counterpart Donald Trump's policy on the issue. Since Trump became president in January 2017 and said he was open to a one-state or two-state solution, Netanyahu has avoided explicitly backing the idea of Palestinian statehood.
All of those sanctions will be "in full force by early November", Trump said.
Netanyahu also said that he had discussed Russia's pledge to supply Syria with S-300 anti-aircraft missiles with the president.
"I hope the restraint continues", he said.
From there, the president turned his attention to China.
Despite his tough talk, Mr Trump told the Security Council on Wednesday that he could envision relations with Iran moving along a similar "trajectory" as ones with North Korea.
President Donald Trump and Israeli Prime Minister Benjamin Netanyahu hold a bilateral meeting during the 73rd session of the United Nations General Assembly at U.N. headquarters. But in that speech, too, he also called out China for its economic practices.
"Those days are over, we will no longer tolerate such abuse", Trump said.
"I would say over the next two to three to four months", Trump said, referring to his prospective timetable for presenting a plan as he met Netanyahu on the sidelines of the UN General Assembly. State-run news agency Xinhua said in a tweet that Trump spoke "in face of blank stares, headshake, frowning".