I dont know NCB's source..its all over the right wing blogs and news sites now, bu the orignial source is the Republican Study group.... a "group of over 100 House Republicans organized for the purpose of advancing a conservative social and economic agenda in the House of Representatives. ... The Republican Study Committee is an independent research arm for Republicans.
http://www.house.gov/pence/rsc/ - see the "Democratic Agenda" which is a bullshit description in itself.