The chief investigative correspondent for ABC News Brian Ross has decided to leave the network after his controversial report involving President Trump and the Russian investigation. A mistake led to a rebuke from the White House had put ABC ‘s credibility at stake.

Brian Ross leaves the organization after a  24-year run at ABC News, where he had been the face of the network’s on-air investigative arm and a regular contributor to coverage of wars, terrorism, politics and scandals du jour like the Bernard Madoff swindle. He was also a very popular name among the investigative reporters’

In a decades-long career, Mr. Ross has collected dozens of prizes for his reporting, including Emmy and Peabody Awards. But he came under fire in December after ABC News retracted and apologized for his errant report that Michael T. Flynn, the former national security adviser, had been directed by Donald J. Trump to make contact with Russian officials during the 2016 campaign.

It was a bombshell claim amid the investigation into the Trump campaign’s ties with Russia. But in fact, Mr. Flynn was told to make contact with the officials after the election was decided, as part of his prospective duties as national security adviser. ABC executives admitted that they “fell far short” of internal standards in airing the report, and Mr. Trump denounced the network as “horrendously inaccurate and dishonest.”

ABC News had suspended Mr. Ross for four weeks without pay. When he returned, the network barred him from covering the president and the Russia investigation, assigning him instead to longer-term projects that he worked on from an office several blocks from the news division’s headquarters. He was also kept from appearing on live broadcasts.