The Hill reports on a senator's curiosity about 527 groups:
“I promised a group of people that we would do some hearings on it,” said Feinstein. “We’ll take a look at the 527, what it is today and where it appears to be going. I’d like to know exactly what 527s are doing. My exposure to them is necessarily limited, as it is for most members. It’s when you have a 527 weighing in against you that you want to know where this money is coming from.” (emphasis added)
Not that Senator Feinstein would do anything to harm the people weighing in against her. She is just curious, eager to learn.