President Donald Trump's coronavirus press briefing on 20 March 2020 and an article by NBC News supports the statement.
As per the White House briefing statement, a reporter listed estimates of Americans who have died and are sick due to the of coronavirus pandemic and followed it with a question by asking President Trump what he would say to the Americans who were scared. The president replied to the question that he was a terrible reporter.
The video of the press briefing has been included in the NBC article, where Trump can be seen telling their correspondent that he was a 'terrible reporter'.
A tweet by Peter Alexander, the reporter, also shows Trump's response to his question.
The COVID-19 pandemic has given rise to a lot of potentially dangerous misinformation. For reliable advice on COVID-19 including symptoms, prevention and available treatment, please refer to the World Health Organisation or your national healthcare authority.