The Washington Post reported Wednesday that Republican operatives close to the White House have begun extensively researching journalists covering Donald Trump Jr.’s June 2016 meeting with a Russian lawyer, aiming to amplify perceived bias and past mistakes.

Through an intermediary, that lawyer, according to emails published by Trump Jr. before a New York Times exposé on the same correspondence, promised the younger Trump dirt on Hillary Clinton as part of a Russian government effort to aid Donald Trump’s 2016 campaign.

In April, Politico cited several unnamed reporters, in addition to a conservative activist who claimed to have spoken to a White House communications staffer, who said unnamed White House sources frequently told reporters untruths.

From the Post’s report Wednesday: