Bowling Green physician Rand Paul is reporting that he has raised more than 100-thousand dollars for an exploratory committee looking at a possible campaign for U.S. Senate.

The Republican is positioning himself for a run if second-term GOP Senator Jim Bunning were to pull out of the race.

Bunning has left open the possibility that he may withdraw if fundraising doesn't improve.

Paul is one of two Republicans who have formed exploratory committees.

The other, Secretary of State Trey Grayson hasn't yet said how much he has raised.

Paul spokesman Christopher Hightower said more than 12-hundred people have contributed to Paul's exploratory committee.