Sean Trende shows that the main reason for Democratic losses in 2014 was the unpopularity of President Obama and his policies.
http://www.realclearpolitics.com/articles/2014/11/19/midterm_demographic...
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.