Age: 53
Background: The son of politician Ron Paul and born in Pittsburgh, Rand Paul is a doctor and US Senator for Kentucky. He and his wife, Kelley Ashby Paul, have been married for 24 years, and they have three sons. The family lives in Bowling Green, KY, where Paul ran an ophthalmology practice for 18 years. He first entered politics when he ran for the Senate in 2010.
Stance on hot topics: Paul has made the national debt one of his key issues, and he plans to cut spending across the board. He's also spoken out against National Security Agency spying, hoping to end the organization's data collection. When it comes to taxes, he wants to cut them for everyone, and he'd like to repeal Obamacare.
Memorable quote: "I want a government really, really small, so small you can barely see it," he said during the fourth Republican debate. "I want lower taxes and much more money in the private sector."
Standout moment from the 2016 election — so far: During that same Republican debate, Paul schooled Trump, who was ranting about China as part of the Trans-Pacific Partnership trade deal. Paul jumped in, saying, "You might want to point out China's not part of this deal" to audience applause.
— Reporting by Laura Meyers
