“[T]o ensure that NEA’s agenda makes its way in the media,” Factor wrote, “NEA has given $100,000 to Media Matters, the George Soros-funded liberal ‘charitable organization’ dedicated to targeting mythical right-wing media bias.”

The Daily Caller has obtained an electronic document verifying Factor’s claim. It is available on a website operated by the Department of Labor’s Office of Labor-Management Standards.

The data is from the Labor Department’s LM-2 form, a disclosure required whenever a union disburses $5,000 or more to an outside entity. In one such 2011 filing, the NEA reported paying Media Matters $100,000 and referred to it as a “political organization.”

Complicating matters for the teachers union is the fact that the same report categorized the $100,000 payment as a “union administration” cost instead of as a political expenditure.