Another member of the Paul clan is looking to join the family business: Robert Paul, son of Rep. Ron Paul (R-Texas), has expressed interest in joining his brother, Rand Paul (R-Ky.), in the Senate.

Robert Paul, a Texas doctor, told the Fort Worth Star-Telegram that he’s looking at running for retiring GOP Sen. Kay Bailey Hutchison’s seat.

“I have thought about running,” he told the Star-Telegram. “I am very happy as a physician, but [I] have a lot of concern about the debt.”

If Robert Paul jumps into the race, he will have company. The Republican field is already crowded, and additional candidates are expected to announce bids.

Former Dallas Mayor Tom Leppert, former state Solicitor General Ted Cruz and former Texas Railroad Commissioner Michael Williams have filed to run for the seat. Lt. Gov. David Dewhurst has expressed interest in running but has not formally entered the race. Many local Republicans think he would instantly be the frontrunner if he decides to run.