I really wish people would simply state that their unwanted caller was a Political call and leave the politics and their opinions on the Political discussion boards. Most here only want to know who called them. Not everyone's political views, Dem or Rep.....
The number is from Restore America's Voice PAC. A very right-wing political action committee that is too cowardly to provide a phone number on their website. Apparently they only like to harass but can't argue enough for their position to field phone calls.
So with some research I can tell you you can contact their call center in Austintown OH at 855-812-0290 and they will remove your number from their call list. They only support conservative causes. You can also contact the PACs lawyer at Maureen Otis at (281) 242-9800, 4850 Wright Rd Ste 168, Stafford, TX 77477.