We get a lot of calls from people who think they're reaching one of the campaigns. I've fielded calls intended for the Nutter campaign (who actually wanted the Evans campaign) and I just got off the phone with someone who thought she was calling the Fattah campaign. Turns out it was the office of Congresswoman Maxine Waters.
Having seen the inside of the call room when a candidate is making fundraising calls, I have a feeling that's what it was about.