The IRS admits that its employees destroyed email back-up tapes in violation of policy, but claims that it was an innocent mistake.
http://news.yahoo.com/watchdog-irs-workers-mistakenly-erased-tea-party-e...
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.