ABC News' chief national correspondent Terry Moran appeared to blame former President Trump for the delayed consensus in the legitimacy of the Wuhan lab-leak theory. 

In a preview of a Nightline report about the origins of the coronavirus that aired on Monday night, Moran is seen interviewing Jamie Metzl, the former State Department official and World Health Organization adviser who had been outspoken about the possibility that the virus escaped from the Wuhan lab.

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"President Trump weaponized this subject and made the very questioning of the origins of the virus radioactive for a lot of people," Moran said. 

"There was so little space even for Democrats, even for progressives to task the question," Metzl told Moran. 

During his Nightline report, Moran went even further. 

"And complicating the task of solving this mystery, the whole topic has become weaponized, a political cudgel," Moran said before playing clips of Trump referring to COVID as the "China virus" and "Kung Flu." 

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Many others in the media similarly knocked Trump and other prominent Republicans who promoted the theory in the early months of the pandemic. 

Associated Press White House reporter Jonathan Lemire accused former Trump and his allies of "practicing revisionist history" while New York Times reporter Maggie Haberman blamed him and former Secretary of State Mike Pompeo for casting doubt within the media for withholding evidence to back their claims.