President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE on Wednesday said "nobody is going to come close" to defeating him in the 2020 presidential election after criticizing The New York Times for publishing a deeply critical op-ed written by an anonymous author who the Times said was a senior official in his administration.

"We’ve done more than anybody ever thought possible in, it’s not even two years," Trump said while addressing reporters at the White House during an event at which he spoke to sheriffs from across the country.

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"We’re doing a great job," Trump also said. "The poll numbers are through the roof.”

Trump spent several several minutes Wednesday listing his administration's accomplishments. He pointed to economic growth, the creation of manufacturing jobs and the unemployment rate, saying the "unemployment picture in the country is the best its been in 49 years."

“Then you go into all the benefits we got from the tax cuts,” he added, prompting applause from the sheriffs.

Trump also noted that the U.S. will be one of the host countries for the World Cup in 2026 and said "we have started" building a wall along the Mexican border.

“Nobody has ever done in less than a two-year period what we’ve done," he said.

The anonymous op-ed in The New York Times lashed out harshly at Trump, saying the root of the White House's problems was "the president’s amorality."

"Anyone who works with him knows he is not moored to any discernible first principles that guide his decision making," the author wrote.

The White House has criticized the piece, with White House press secretary Sarah Huckabee Sanders saying the "coward" who wrote it should resign.