I don’t think this happens, at least not often. What does happen is that reporters cherry pick sources and quotes to back up the storyline they are pushing, which in the MSM is almost inevitably anti-Trump.
From the Washington Examiner:
President Trump said Friday that reporters who cover the White House should stop relying on anonymous sources who refuse to criticize him on the record.
“A few days ago I called the fake news the enemy of the people and they are, they are the enemy of the people because they have no sources, they just make ’em up when there are none,” Trump told thousands of grassroots activists at the 44th annual Conservative Political Action Conference.
“I’m against the people that make up stories and make up sources,” he said. “They shouldn’t be allowed to use sources unless they use someone’s name. Let them say it to my face.”