All my campaign contributions go to the Club For Growth, so they can try to send clowns like Chaffee packing. I will never, ever send money to the RNC or congressional PACs again.
I like Club for Growth also, but they're not infallible.
I just saw them spend $600,000 to get just 24,000 votes, on the losing side, of a primary in Nevada.
I trust my own judgment best of all.