Back in 2011 I and many others including Fox News, as well many bloggers wrote that Media Matters non-profit status should be revoked, and as such should be charged IRS taxes There are very stringent rules for gaining non-profit profit status to be considered non-taxable by the IRS., and many don't's. One of those is in regards to political activities. Here's the rule in question.
It may not be an action organization, i.e., it may not attempt to influence legislation as a substantial part of its activities and it may not participate in any campaign activity for or against political candidates.
Organizations described in section 501(c)(3) are commonly referred to as charitable organizations. Organizations described in section 501(c)(3), other than testing for public safety organizations, are eligible to receive tax-deductible contributions in accordance with Code section 170.
The organization must not be organized or operated for the benefit of private interests, and no part of a section 501(c)(3) organization's net earnings may inure to the benefit of any private shareholder or individual. If the organization engages in an excess benefit transaction with a person having substantial influence over the organization, an excise tax may be imposed on the person and any organization managers agreeing to the transaction.Media Matters from its inception by activist David Brock, have long violated this rule with political activities such as backing specific candidates for office such as Barack Obama and Hillary Clinton. Media Matters does nothing but to serve the anti-conservative derangement of David Brook to get all conservative media off the air.
Most recently it's been an organized effort to have Fox News fire Sean Hannity, which is a blatant violation of the code.
Even Mark Levin has suggested that Hannity sue Media Matters for attempting to influence his employment contract with Fox by pressuring sponsors of his show to drop support. I agree that this is exactly what Hannity should do and likely will do, nevertheless there has never been a non-profit status that has survived this type of activity.
Between 2011 and 2014 the Fox News Network attempted to have the exemption for Media Matters revoked, however, the IRS (embroiled in its own scandals), never fully looked into it. More than likely President Obama pushed to have it dropped.
But now with Trump in office, it's time for a new effort. The same IRS director is in office minus pressure from a lawless president.
You can personally file a complaint with the IRS at this link. Additionally, contact your Congressional representative or Senator and ask them to look into it.