Quote: the G-man said: Media matters claims to be a site about correcting "mistakes," or reporting of incomplete facts, made by other news organizations, not a site for editorials about supreme court nominees.
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Actually this is what they are...
Quote: Who We Are
Media Matters for America is a Web-based, not-for-profit, 501(c)(3) progressive research and information center dedicated to comprehensively monitoring, analyzing, and correcting conservative misinformation in the U.S. media.
Your description of them is incomplete, you might want to apply your standard to yourself buddy