In November 2009, Texas Watchdog reported that Duncan spent $15,800 on non-commercial air travel between January 1, 2008 and May 1, 2009. The state reimbursed Duncan for these private air flights under senate rules. Duncan's spokeswoman said, "Despite the size of Senator Duncan’s district, he believes it’s an important part of his role as a legislator to travel its 46 counties as often as possible to meet with his constituents."