A new survey from Public Policy Polling shows that U.S. Rep. Ron Paul (R-TX) seems to be cutting into the former House Speaker's Hawkeye lead.

The survey found that Newt Gingrich and Paul are tied in Iowa, with Mitt Romney coming in third. That's a change from a previous poll that showed Gingrich with a relatively healthy lead.

Like Romney, Paul is a veteran of the 2008 campaign. But that may be where the similarities end. Paul has been an advocate of a noninterventionist foreign policy and an opponent of the U.S. Federal Reserve. He's even come out against a monetary standard not backed with either gold or silver.