The answer is one of Washington’s open secrets. Mr. Carlson, a proud traitor to the elite political class, spends his time when he’s not denouncing the liberal media trading gossip with them. He’s the go-to guy for sometimes-unflattering stories about Donald J. Trump and for coverage of the internal politics of Fox News (not to mention stories about Mr. Carlson himself). I won’t talk here about any off-the-record conversations I may have had with him. But 16 other journalists (none from The Times; it would put my colleagues in a weird position if I asked them) told me on background that he has been, as three of them put it, “a great source.”
“In Trump’s Washington, Tucker Carlson is a primary supersecret source,” the media writer and Trump chronicler Michael Wolff writes in his forthcoming collection of essays, “Too Famous.” Mr. Wolff, who thanked Mr. Carlson in the acknowledgments of his 2018 book, “Fire and Fury,” explained, “I know this because I know what he has told me, and I can track his exquisite, too-good-not-to-be-true gossip through unsourced reports and as it often emerges into accepted wisdom.”
Mr. Carlson was particularly well positioned to be a source about the Trump administration. His Fox platform, where in May he had a nightly average of three million viewers, made him someone who mattered to Mr. Trump, a close follower of television ratings. He has a former reporter’s eye for detail and anecdote, and his observations can be detected in the lurid tales of Mr. Trump’s chaotic court and Fox’s own tumultuous internal politics.