We wrote recently about the hypocrisy of Democrats’ attacks on President Trump’s National Labor Relations Board (NLRB) nominees.

It’s not just politicians leading the charge. David Rosenfeld, a partner at the pro-union law firm Weinberg, Roger, & Rosenfeld, has allied himself with Sen. Elizabeth Warren (D-MA) in these attacks. But as it turns out, Rosenfeld isn’t so squeaky-clean himself.

According to recently obtained NLRB documents from the late 1990s, the union lawyer was publicly “admonished” by the Board for “continually referring to the National Right to Work Legal Defense Foundation as the ‘Right to Freeload Committee,’ ‘The National Right to Shirk Legal Defense Foundation,’ or variations thereon.” He even referred to National Right to Work attorneys as “Shirkers.” According to the NLRB’s Executive Secretary at the time, the Board “found such offensive epithets inappropriate and a manifest disrespect for the Board’s processes.” Rosenfeld was warned that, if the behavior continued, he could face “possible prosecution” by the Justice Department.

It takes a special kind of labor lawyer to be condemned by a bipartisan NLRB. You can see the documents here.

In the meantime, Rosenfeld should stop lobbing stones from glass houses.