If they truly wanted to get money out of politics stop all the corporate and Ag subsidies and stop all the grants to NGO types - no grants to ACORNor NPR PBS PlannedPedocide and the like. Stop gov from doing favors to help a corp stop its rivals etcetc
You make a point - “big money” involves more than political contributions - Obama has been throwing hundreds of millions of public dollars at favored private companies, many of them donors to his campaigns. If you REALLY want to get big money out of politics, prohibit government from dispensing big money to favored companies and agencies. Libs absolutely HOWL when conservatives suggest that government STOP giving big money to Planned Parenthood.
If all that (and more) doesn't happen, our country is over.