David Brock’s Media Matters for America appears to be granting hundreds of thousands of dollars in charitable funds to political groups that are trying to impeach the president and unseat Republicans across the nation. Brock’s Media Matters for America is a registered 501(c)3 non-profit organization that has tax-exempt status. That tax-exempt status comes with an important caveat: the non-profit is barred from participating in political activity–funding or otherwise–that is in support or opposition to a candidate for office. Media Matters for America granted $200,000 in 2016 to a Brock organization, though it is unclear if it was American Bridge 21st...