Two Republican Congressmen say that the IRS Commissioner should be impeached for his failure to cooperate with Congress in finding out the truth about the IRS targeting scandal.
http://www.wsj.com/articles/the-stonewall-at-the-top-of-the-irs-1438039060
The Conservative Caucus is a public policy organization, contributions to which are not tax deductible. The IRS has determined TCC to be a 501(c)(4) organization, exempt from Federal income tax. TCC can receive corporate donations.