If you remember my pieces exposing Conservative Action Fund, Conservative America Now and Patriots for Economic Freedom as scam PACs, you know it’s an ongoing concern.
Now Right Wing news has done an in-depth piece on 17 high-profile PACs, only three of which gave more than 50% of the money raised to candidates. It was particularly disappointing to see Tea Party Express use only miserable 5% of the funds raised on candidates and campaigns.
Read the whole thing, including their caveats about the difficulty in measuring spending from some groups.