Who called from 6616702560

I have been receiving daily call from this telephone.  First time I answered it but didn't understand te person who was calling.  After that I don't answer the call, and no messages have been leaved.

When I picked up, they asked for my wife by name - I asked who was calling and they SAID they were the Democratic National Committee, but who knows?  Anyway, I requested that the number be removed from their call list.

Three calls in two days - I once gave 5 years ago. BIG MISTAKE.
Last time. If I ever give to any organization again it will be anonymously via paypal.

Tues 30 June 2015 received call from 661-670-2560 on the land line. Caller ID said DNC. i did not pick up. no msg was left.

I have had numerous calls from this number. They call my VoIP number as I live outside the U.S. I backtracked it to political fund raiser. No message left. I imagine the frequency of these calls will increase as the election is closer.