Ron Paul

Republican

Opponents

Received at least 1% of vote

Mitt Romney

2012 Republican Primary

Newt Gingrich

2012 Republican Primary

Rick Santorum

2012 Republican Primary

John Mccain and Sarah Palin

2008 Republican Primary

Mike Huckabee

2008 Republican Primary

Fred Thompson

2008 Republican Primary

Rudy Giuliani

2008 Republican Primary