Big Government and Big Business have always shown a tendency to be allies. As the Republican Party moves to the right and opposes corporate welfare, the liberal Democrats are more openly becoming the party of Big Business.
http://www.nationaljournal.com/congress/senate-democrats-try-to-win-big-...
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.