Paul, a longtime Republican U.S. representative from Texas, didn't seek re-election this year.
"I think people had enough of me," the 77-year-old congressman told Bloomberg Television. "I do not have much confidence in the political system and never did. My goal has always been to change people's minds because as long as people demand more government, they will get it. Government reflects the people. That is why I am excited to go to college campuses and I will continue to do that. That's where I will get a lot of support."